got fired from the film that made him. but first, the "nightline 5." >> it's a significant improvement over what we had. >> i've had a lot of hondas. >> we talked to people who made the switch to ford the brand more people buy and buy again. >> all-wheel drive is amazing. >> i felt so secure. >> i really enjoyed it. >> the eco boost. >> the new image of ford looks really refined. >> i drove the fusion and i never went back. >> the escape was just right. >> make the switch to ford and get $750 competitive owner cash on top of other offers at your local ford dealer. >> number one in just 60 seconds. good evening. you're about to meet a self-proclaimed travel pro who takes pride in toeing the line between controversial and con man. his hacks are equal parts ingenious and outrageous. if you've got the confidence to see what you can get away with the answer might be a lot. here's david wright. >> reporter: we all know that the friendly skies often aren't. airlines are in the business of taking advantage of you when you're down. >> reporter: which is why this man doesn't feel guilty at all. >> my name is justin rossly a travel influencer and the owner of pretentious pocket. we make the world's finest pocket. >> reporter: reminiscent of frank abignail of "catch me if you can" fame. a travel hacker whose video and elite daily went viral. sharing the travel tips of a first class scam artist. >> i became a travel expert purely by accident. you know i had a taste of the finer things in life. i've been able to curtail my technique. >> reporter: taking a free wi-fi, free food and free booze. >> why spend money on an office space when i can just come here? >> reporter: he often goes to the first-class lounge even on days when he's not flying. his tip, buy a refundable first-class ticket, enjoy all the comforts on the other side of security, and when you're done for the day, cash it in instead of boarding the flight. >> do i ever get push-back for canceling a refundable fare? no. the same way you don't get push-back for returning socks at the gap. these airlines make the rules and i just play by them. i sleep very well at night. >> reporter: to avoid the long lines in the departure area -- >> i have my ride drop me off at arrival, take an escalator. >> reporter: if he doesn't like the person assigned to sit next to him, he knows a sure-fire way to change partners. fame a nut allergy. >> i call the flight attendant, excuse me but there's peanut residue in this seat. you'll find sewer going to be reaccommodated quickly. now, yes, i understand that's a dirty technique. it's a dirty trick. >> reporter: these cutthroat strategies haven't exactly endeared him to the travel industry. >> i answer a lot of hate mail. you're a giant [ bleep ]. >> reporter: but they do seem to work for him. and as long as they do lee is unapologetic. >> i don't scam airlines. airlines scam consumers. they're goliath and i'm david. >> reporter: the airlines aren't his only targets. he says he's also a master at getting the cheapest hotel room available. ever heard of corporate discounts? who sit you have to actually work for the company to take advantage of them? >> i think you're a schmuck if you don't become an employee. >> reporter: a believable business card is apparently all you need. this video details what he says is a surefire method for an upgrade. identify which manager is likely to be most sympathetic or most intimidated, and complain. >> the makeshift setup at the club lounge is incredibly lackluster. i would hate to have to move to the grand hyatt, that would be a silly thing to do. >> we can move you to one of our terrace suites if you'd like. >> reporter: the customer is always right. >> we have a new suite. >> gorgeous. >> reporter: lee is so confident in his skill -- >> let's see what we've got. >> reporter: he's going to try to show us how it's done. >> the angles the feng shui is all messed up. >> reporter: getting an upgrade while our cameras are rolling. first he does his research. then makes the call. >> it's my first time staying at your property as a diamond member. so far my expectations haven't been met. >> reporter: we'll see how he fares in a bit. first we should note you don't have to bend the rules to be treated well. true frequent flyers get treated like kings. people like tom stooker, united's 13 million mile man, whisking past you at o'hare on that golf cart. a privilege stooker has earned in dozens of long-haul flights. so many, united named a jumbo jet for him. he once traded in a few for a cameo on "seinfeld." he has his own line at check-in where the agents know him by name. >> how often do you see him? >> i think -- well once a week maybe twice a week. >> do you feel at home when you're flying? >> oh, gosh, yes. oh, man. you know people have vacation homes? you know? i have united. >> can you give me a tour? >> sure. >> reporter: united is less mond of 22-year-old aktera zaman, who my colleague dan harris visited. >> here is my desk with this laptop that controls everything. >> to this we are basically in the global headquarters of skip lag. >> reporter: his website skip lagged helps people find cheap fares the airlines didn't intend. here's how it works. a traveler looking to fly from indianapolis to new york city may find that it's cheaper to book a night to charlotte that connects in new york and get off the plane early. they're called hidden city fares and the airlines actually prohibit them. but that doesn't stop him. >> this is knowledge that can be derived from publicly available information. they're trying to suppress this knowledge. >> reporter: united has filed a lawsuit claiming he intentionally and maliciously used skip flagged to damage united's business. >> you don't feel like you're enabling people to behave in an unethical way? >> i'm providing access to information. what people do with that information is up to them. >> reporter: back to justin ross lee. still trying for that hotel upgrade. >> i understand if you're fully committed. >> reporter: when hardball doesn't work, he switches gears and goes for the soft sell. the conversation always polite. >> i would really appreciate that. >> reporter: a smile and a good tip can go a long way. >> i do believe in karma. especially in the hospitality industry. yelling is never going to get you anywhere. >> reporter: today just isn't his day. he ends up with some extra hotel points but no upgrade. even the we'lliest travelers can't win every time. i'm david wright for "nightline" in new york. next we're going inside the classified apple lab to find out about new developments so secret, even these guys didn't know where they'll lead. later, al pacino as you've never seen him before. with chantix. my children always wanted me to quit smoking but i resigned myself to the fact that it wasn't going to work. but chantix helped me do it. along with support, chantix (varenicline) is proven to help people quit smoking. it gave me the power to overcome the urge to smoke. some people had changes in behavior, thinking or mood hostility, agitation, depressed mood and suicidal thoughts or actions while taking or after stopping chantix. some people had seizures while taking chantix. if you have any of these stop chantix and call your doctor right away. tell your doctor about any history of mental health problems, which could get worse while taking chantix or history of seizures. don't take chantix if you've had a serious allergic or skin reaction to it. if you develop these stop chantix and see your doctor right away as some can be life-threatening. tell your doctor if you have a history of heart or blood vessel problems or develop new or worse symptoms. get medical help right away if you have symptoms of a heart attack or stroke. decrease alcohol use while taking chantix. use caution when driving or operating machinery. common side effects include nausea trouble sleeping and unusual dreams. i'm a non-smoker. ask your doctor if chantix is right for you. the volkswagen passat handles like a dream. go ahead... step on it. yeah? 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(announcer) the subaru xv crosstrek. symmetrical all-wheel drive plus 34 mpg. love. it's what makes a subaru a subaru. the volkswagen jetta is really fun-to-drive. go for it. okay. wow... woohoo! i'm dreaming... pinch me. no, not while you're driving. and, right now, you can get a one-thousand-dollar volkswagen credit bonus on jetta models. seriously, pinch me. it's not a dream. ow! it's the volkswagen stop dreaming, start driving event. stop dreaming, and test-drive one today. hurry in and you can get 0% apr plus a $1000 volkswagen credit bonus on 2015 jetta and passat models. you're about to get an exclusive look at a lab in one of the most famously secretive companies on earth apple. many of their own employees didn't even know it existed until now. but innovations pouring out may change the face of medical research, and you could be a part of it all. here's abc's rebecca jarvis. >> reporter: behind this unassuming door, a covert operation at the world's most valuable company. let's go check it out. all right, give to it me straight, how top secret is this place we are sitting in right now? >> you're the first person through that's not part of the apple team. so it's pretty secret. >> reporter: our cameras exclusively going where no outsider has gone before, inside this 23,000 square foot health lab where apple employees laugh been putting on high-tech gear worth millions of dollars and running, rowing and downward dogging for nearly two years. >> we took this old building and gutted it and turned it into a state-of-the-art fitness lab. and we're learning so much. it's crazy. >> reporter: their workouts secret research shaping the most highly anticipated health features on apple's new watch, unveiled in september. set to go on sale next month, it will range from $349 to an 18-karat gold version that will run you $17,000. that watch will let you track calories, heart rate, and how much you walk or stand. how does something like this ultimately translate to that watch that you're wearing on your wrist? >> we have the number of sensors that we have available to us that can help us get information. >> reporter: jay blanik apple's director of fitness for health technologies, taking us behind the scenes to see the volunteers. apple employees, including engineers, managers and developers. what do you do for apple? >> software engineer. >> kind of cool that you work for a company that lets you test things out like this yeah? >> in the two years this lab has been open we've had over 10,000 of these sessions you're seeing right now, over 18,000 hours of data collection. >> reporter: the kick tore all this -- >> they didn't even know what they were working on. >> that's a lot of hard work to not know what you're doing. >> it is a lot of hard work but we've got great employees and they just love contributing. >> reporter: great employees in fancy head gear. >> how are you feeling? thumbs up? what is she wearing on her head? >> so that's to be able to track exactly how hard is she breathing in the best way to get to the truth of how many calories you're actually burning and how hard you're working. >> you're also testing this thing outdoors. >> when you think about it, most people's activities are not all in the gym. >> reporter: and climate chambers where apple is testing our physical response to different temperatures and levels of humidity. >> get a chance to see inside. >> here we go. this is chilly. >> yeah. you can feel right now, doing an activity outside or coming in here, it really does replicate that colder climate. if you're hooked up with equipment, we'd be able to learn about how your body responds, what we're able to measure. it's been reuseful to us. >> reporter: with all that personal data recorded heart rates to location some question how secure your information will really be. >> how about privacy? because we've now seen a number of data breaches. if your health information is stolen on the black market it's actually ten times more valuable than your financial information.es this protect your privacy? >> the data from the watch is stored on the phone and we don't have access to that information. we believe that all of the activity data that comes from the watch, that ends up on the phone, you get to decide what third-party apps you share that with. >> reporter: the health initiatives reaching beyond apple's own employees. enter research kit. an open door platform where the population at large can participate in research studies through an app. we visited stanford medicine to see it in action. >> this is going to change the way your job works. >> definitely. certainly from the research side, it gives us a new way to do medical research. >> reporter: dr. michael mcconnell enrolled 25,000 participants in his heart health study in just one week using his app. >> 25,000 people in a week. have you ever signed up 25,000 people in a week for any study ever? >> certainly personally i have not. >> reporter: his app is one of five that is worth thousands of participants in just days. >> i think it's a very big game changer. traditionally reaching many people to participate in research studies is quite challenging. the ability to reach people through their phone is one major advance. >> reporter: this unprecedented data collection and all that sweating in secret helping the company that redefined our phones chart its next revolution in the way we live. >> from now on i need to do all my interviews on a treadmill so i can get my workout as i'm working. live froththe climate chamber in cupertino in the top secret headquarters of apple! >> reporter: for "nightline," i'm rebecca jarvis. and next say hello to a legendary friend. al pacino is a long way from "scarface" in his new movie "danny collins." here at friskies, cats are in charge of approving every new recipe. because it's cats who know best what cats like to eat. up today, new friskies 7. we're trying seven cat-favorite flavors all in one dish. now for the moment of truth. yep, looks like it's time to share what our cats love with your cats. new friskies 7. for cats. by cats. you get sick you can't breathe through your nose... ddenly... you're a mouthbreather. well, put on a breathe right strip and instantly open your nose up to 38% more than cold medicines alone so you can breathe and sleep shut your mouth and sleep right. breathe right. it's time to drop your pants for underwareness, a cause to support the over 65 million people who may need the trusted protection of depend underwear. show them they're not alone and show off a pair of depend. get a free sample at underwareness.com. finally tonight, hear the line and you know the movie and the man. "say hello to my little friend." "i know it was you, fredo, you broke my heart." al pacino. "danny collins" premieres tonight. sitting down for a rare glimpse inside his career. from the moment you meet him, you can see it. the old-school charm, the youthful mischief twinkle in his eye. >> i read you'd be trouble. are you always this high maintenance to talk to? >> i try to avoid it at all costs. but it just keeps following me. >> honestly you look slightly ridiculous. >> nah. >> reporter: at age 74 we get to see al pacino get in trouble onscreen again. tonight's opening of his 48th movie "danny collins," pacino plays an aging rock star. >> a cross between rod stewart and barry manilow. so he was the love child. >> reporter: a feel-good romantic comedy with the pacino we have never seen before. >> we haven't seen me do this at all. sing, for one thing. >> you sing? >> i try to. ♪ hey baby doll what's going on ♪ >> reporter: for almost 50 years, onstage and onscreen when al pacino tries to, magic happens. "serpico." "heat." >> brother, you are going down. >> reporter: the movie that launched his career, and almost ended it. "the godfather." >> they wanted to fire me when i was on the picture. >> they wanted to what? >> fire me. >> i thought i made him an offer he couldn't refuse. >> reporter: the producers hated pacino's version of michael corleone thinking he was too soft. with encouragement from fran advertise ford coppola and marlon brando pacino turned it around. >> no more attempts on my father's life. >> the restaurant scene. >> the restaurant scene kept me in the picture. >> from the viewerer perspective you went from being a nice college kid -- >> exactly right. >> to a bad-ass. >> that was the turning point. >> al pacino bad-ass. >> yeah. there is. i mean, of course. >> reporter: years later, he took bad-ass to a new level. cuban drug lord in "scarface." >> say hello to my little friend! >> the accent was very important to me. >> you know what i'm talking about you [ bleep ] cockroach. >> to have an accent that wasn't literally the way they speak but a manifest case of my imagination of how they speak. >> reporter: for young alfredo james pacino growing up poor in the south bronx, raised by his mother rose who introduced him to the movies. >> we would go to the movies and then the next day she'd go off to work i'd be in the house, i'd remember the movie and enact all the parts. >> quite a deal to get into this place. >> reporter: a high school dropout, his passion truly became his profession when he enrolled in new york's legendary the actors studio. >> we had montgomery clift, marlon brando james dean, paul newman marilyn monroe. i can't stop name-dropping. >> reporter: he didn't seem a ly candidate. his audition, disaster. >> they said, nope don't want you. >> yeah, they usually do that, by the way. because they want to see sometimes if you have incentive. >> reporter: after several nominations, pacino finally won the academy award's best actor in "scent of a woman." this deliciously gifted actor, a near-mythic figure to fans and peers, is surprisingly small in stature. >> they said you know you're shorter than i thought. the other person said, i didn't say that. he said you should see him when he's standing on his awards. can you imagine that? >> brag and you can back it up. >> reporter: oscar, tony two emmy awards, al pacino simply sees himself as a working man who happens to act. >> why so busy still? >> i have young kids. >> kids got to eat. >> got to eat, the kids got to eat. >> as a survivor you make everything work. >> hm, survivor. >> i am that. >> survivor got to love that. it was american actor, teacher, and director lee strasburg who said of pacino some actors play characters, al pacino becomes them. our thanks to mr. pacino for his time and talent. what's your favorite al pacino movie? head to our facebook page and let us know in the comments. thanks, tune into good morning america, online at abcnews.com. good night, america. hello. raymond? even better. i'm robert, the brother. well, hi i'm carol marshall from humm vac cleaning systems international. oh, please, come in. thank you. ah, you must be raymond. yeah. hi. hi. i spoke to your wife last night about coming by to demonstrate our system. oh, right. yeah, oh, the vacuum. i thought she said that we didn't need a new vacuum cleaner. yeah, she did. i remember because it was right before she told me that i have to go pick up something from somewhere. oh, you didn't happen to catch any of that did you? sorry. yeah, so, when we spoke last night things did seem pretty hectic, so, since i happen to be in the neighborhood, i wondered if maybe now might be a good time to come show you how wonderful the humm vac is, and to offer you this complimentary lint brush. yeah. i don't know. my wife says i'm really not supposed to -- come on, ray. it's complimentary. may i, robert? this won't hurt a bit. see? ew. cool. and that is yours for being such a good patient. thank you. you were very gentle. oh, here, i have one for yo too. oh. oh.

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