i can really do a spell with magic in real life. >> coming to an end. >> i am grateful to be a part, loved every day of it. >> never before seen footage of the making of voldemort, behind the scenes footage never revealed and scenes you will not see anywhere else. >> daniel radcliffe, emma watson. watson.rupert grint, helena bonham carter robbie coltrane, james and oliver phelps and tom felton, they're all here on the larry king special, harry potter, "the final chapter." >> i'm coming to you from harry potter the exhibition in new york city. you might recognize the griffendor room, behind me. whether you're a muggle or full-blown wizard, it may be hard to believe one of hollywood's most successful franchises ever is about to come to an end, from books to movies to a theme park in orlando, j.k rowling's story about a young boy's stories and a wizard is a pop culture phenomenon. over the last ten years, seven films alone have made $6 billion. tonight, you'll hear secrets from the set. you'll see how the wizarding world was brought to the big screen. we'll even show you an exclusive never before seen clip of the final movie just days before it opens. but, first, a look back at how it all began. >> be safe, be strong. >> harry potter, the boy who lived, faces his biggest challenge yet. a final showdown with the dark lord voldemort, an epic battle ten years in the making. the last harry potter. how's that feel? >> very very strange considering we've done it for 10 years. but a wonderful feeling of particularly very very proud of this last film and it's the best out of all of them, i think. i'm very very excited. >> also excited, the millions of harry potter fans around the world, who have been waiting years for this finale. >> from what i could see, it's pretty epic. i think we do -- we do it justice. >> now, join me, harry, and confront your faith. >> voldemort is rising again and really quite disturbing as we're losing characters we have known since the first book. i think it's going to be really shocking to see the cast collapse into this kind of burning piles of rubble. >> come on, tom, let's finish this the way we started. >> harry potter and the deathly hallows, part two is sure to be the biggest movie event of the summer and will give fans the ending they've been waiting to see since we first met the wizard in 2001's harry potter and the sorcerers stone. it was ten years ago for the very first time we were able to see the wizarding world until then only imagined in books. >> plenty of courage, i see. not a bad mind either. there's talent. >> up, get up! >> we laid eyes on harry potter, an orphan who was made to live under the cupboard under the stairs by his aunt and uncle. >> there's no such thing as magic. >> come see what he's doing. >> tormented by his cousin, feeling isolated and alone, who found out he was not only a wizard, but the most famous wizard at all. we were also introduced to his two best friends. >> are you doing magic? >> the book's smart know it all hermione granger. it made stars out of daniel radcliffe, emma watson and rupert grint. they have grown up before our eyes. >> it's really strange, the only way i can describe it. i was so young, it's difficult to remember much of my life before this happened to me. it coming to an end is, you know, it's huge. i was 9 years old. i was still losing teeth. if that puts it in perspective. i was still losing baby teeth. >> the first film was an instant hit for warner brothers, which like cnn, is owned by timewarner. that wasn't a surprise. by then, harry was already a household name around the world to the millions of fans of the books. all dreamed up by an unlikely author, j.k. rowling, who at that time was a single mother on welfare when she came up with an idea about a boy who does not know he's a wizard. do you remember how -- it's impossible to say how an idea came about? do you remember the concept? >> it came to me on a train from manchester to london in england. >> what came? >> the idea for this boy who didn't know what he was until he was 11. then he got this invitation to go off to wizard school. i had this very physical response to the idea, i felt so excited and thought it would be such fun to write. >> the first book was released in 1997 released as a simple children's book by an unknown author. many people including j.k. rowling herself didn't have high hopes. >> in all honesty, i thought if it ever got published it would -- it is kind of a book for obsessives. i thought there would be a few people who would like it a lot and not have broader view. >> rowling who was turned down by several publishers, has become one of the richest woman in the world, so successful she supposedly surpassed the queen in wealth. her stories sold more than 400 million copies. the books are available in 200 countries and have been translated into some 70 languages. each release of a new novel was a cause for celebration for fans who waited in lines for days to walk out with the latest story. in 2007, when rowling released the final chapter of the series, "harry potter and the deathly hallows," we knew it would eventually come to this. >> the boy who lived. come to die. >> harry and voldemort's final stand, the last harry potter movie ever. >> you said this one, the one opening later this week is the best. >> uh-huh. >> why. >> i think it's the most exciting. i think it's the most direct. i think we did so well from seven part one by setting up all the plot that people need to understand this second film we can dive straight in and give people this. in this film, we find the balance best between the emotional side of the films and the action packed adventure exciting side. i think we've never got the balance so right before. >> i would agree. it's a hell of a movie. >> it is a hell of a movie. coming up, an exclusive clip from the final harry potter film you won't see anywhere else, plus we'll show you how ray plus we'll show you how ralph fiennes went from this to this. what happened on the last day of filming. >> i wept like a child on the last day. >> when this larry king special, harry potter, the final chapter returns. . our girl's an architect. our boy's a genius. we are awesome parents! biddly-boop. [ male announcer ] if you find a lower rate on a room you've booked, we won't just match it. we'll give you $50 towards your next trip. [ gnome ] it's go time. we'll give you $50 towards your next trip. any questions? no. you know... ♪ we're not magicians ♪ we can't read your mind ♪ ♪ read your mind ♪ we need your questions ♪ each and every kind ♪ every kind ♪ will this react with my other medicine? ♪ ♪ hey, what are all these tests even for? ♪ ♪ questions are the answer ♪ yeah ♪ oh 10 years ago, it was the million dollar question, who would play harry potter. producers set out to find the perfect boy. >> it was a very difficult process. finding harry was very hard, like trying to find scarlet o'hara. i think everyone was getting slightly desperate. i was walking down the streets in edinboro in london and looking at boys who passed me in a very suspicious way and could it be him and the producer and director walked in the theater and found dan and he is an actor and perfect. >> daniel's biggest role was in a previous movie series, david copperfield. his parents tried to keep him from trying out for the part of movies, and the producer asked the boy's parents if he could audition. not wanting this role to disrupt his childhood, they declined. eventually, fate stepped in one day at the theater. >> i was sitting in the theater minding my own business with my mom and dad and in front of us was the producer of "harry potter," david heyman and the screenwriter, steve kloves. i was unaware of why this man kept staring at me through the show and didn't know what to make of it. i remember my dad and mom getting quite flustered. eventually, that was the moment they said maybe this was meant to be. let's let him audition. >> how did they tell you you got it? >> i was in the bath and my dad got the phone call downstairs and came in and said, you've got the part. i was just very very happy. >> how old were you? >> i was 11. i think i just turned 11. i had no idea what the implications were but knew that probably meant i bought myself ab half hour extra before i had to go to bed that night. >> the implications were that radcliffe's life was about to change forever. >> did you have a normal boyhood? >> it's very hard to say. i guess no is the official answer. i certainly didn't have normal teenage years but equally, i don't really know what normal means. was i happy and healthy and surrounded by fun and love? yes. i was also surrounded by inspirational, interesting people from a variety of different backgrounds. >> so many child stars for want of a better term, kids who become famous early have major problems. >> yes. >> you didn't. can you explain that? kids are not supposed to be famous at 11. >> no, they're not. i think what i put it down to is the fact that the -- i think it's very different doing it in england than doing it in america. when you do it over here, you are treated as a star first and a child second, whereas in england, it's the other way around, you're treated as a child first and you're also an actor in films. i don't think anyone panders to it possibly as much in england as they do in america. thankfully i have not gone massively off the rails. >> have you enjoyed it? >> oh, yeah, immensely, absolutely. i mean, while there have been moments obviously i'd be lying if i said every single day was fantastic, but, you know, generally speaking, i just had the best time. i got to work with my best friends everyday. >> do you like harry? >> yes. >> anything you don't like about him? >> of course. he's kind of arrogant and selfish at times. not so much in the later films and also, i think there's often a little bit of the smell of burning martyr about harry. he occasionally, i think, likes to -- the fact that it's all on him and i think the lying snape says he seems to relish his name while i don't think that's true, he does have a hero complex that he thinks he always has to be the hero, which i suffer from myself sometimes. >> really? >> i think so, yes. >> not wanting to be typecast forever as harry potter, radcliffe began branching out. in 2008, he made his broadway debut in a controversial show, equis, appearing naked on stage. >> not to expect the jumping. >> not to expect the jumping. >> everyone would expect the jumping but dancing and singing is something completely different. i have the energy to do it at this age. i might as well be doing it. i do think there's -- as an actor -- i don't think you'll ever work that much harder than doing a broadway show, particularly a musical eight times a week. yeah, i like working hard. that's the other thing that potter has instilled in me is a work ethic that i love to work. >> how have you kept a balance through all of this? >> i think the most important thing for me to remember, it doesn't matter who would have got this part, they would be receiving this kind of attention and this much -- when you step out of the car at a premier and you get hit by that wall of noise and screaming, it's very important to me to remember they would be screaming for somebody else had he got the part. it's not about me. it's about the franchise and the character. that, i kind of have to think about a lot to keep it in perspective and stop myself getting big headed. >> coming up next, behind the scenes exclusives, special effect wizards will show us never before scene footage of the making of lord voldemort. plus, an exclusive first look from a scene of "harry potter and the deathly hallows part ii" on harry potter, the final chapter. you need a little help with your mortgage, want to avoid foreclosure. smart move. candy? um-- well, you know, you're in luck. we're experts in this sort of thing, mortgage rigamarole, whatnot. r-really? absolutely, and we guarantee results, you know, for a small fee, of course. such are the benefits of having a professional on your side. [whistles, chuckles] why don't we get a contract? who wants a contract? [honks horn] [circus music plays] here you go, pete. thanks, betty. we're out of toner. [circus music plays] sign it. come on. sign it. [honks horn] ...homes around the country. every single day, saving homes. we will talk it over... announcer: if you're facing foreclosure, make sure you're talking to the right people. speak with hud-approved housing counselors free of charge at... j.k. rowling created a unique world within the pages of her "harry potter" books. a world where cars fly and wall portraits talk. books try to eat children. magic spells are cast, with the simple wave of a wand. >> fantastic, ginny! >> where ralph fiennes transforms into voldemort. >> there is a complication in books and j.k. writings is great and gives a very good description but writing on the page and translating it into the moving image is difficult because everybody has an idea when they read the book what it might look like. >> tim burke has been the visual effects supervisor for the past eight years, his job, trying to make everything that happens at hogwarts look real. >> visual effects and harry potter go hand-in-hand. you can't make the films without them. >> burke leads a team of hundreds of production wizards who make movie magic on the big screen. >> i don't think the audience would realize how many special effects are in the movie especially down to the environment and what was shot in the green screen and the final film and he's standing in the scottish islands. it often surprises people. >> what's down there? >> thankfully our three hero actors basically have learned how to act to the green screen stages with nothing else to work off of, which is essential for us because it's only through that we can show it existed later on. >> and from the ones they created for the films, he has his favorites. >> when we did the hippogriff on the third film, that was a big technical challenge at the time and maybe easy to do now but at the time a very difficult complex thing to do. it was a very big character in the film. we had to do a lot of complex things involving harry having to ride and then fly on the back of it. so realizing completing that, the film was quite an achievement. more recently, i really, really thought the work we did with creature and dobby in deathly hallows part 1 was really top notch. you had to empathize with these little characters to the point you really had to feel harry's emotional distress when dobby died at the end to do a cg creature that causes the audience to shed a tear was a challenge and we managed to pull that off. that was quite a difficult thing but quite rewarding. >> for every rewarding challenge there are some effects burke says have fallen flat. >> you're pleased with some things and others are not quite as good as you hoped. i think for me, if i'm completely honest, it would probably be grawp on the fifth film didn't quite hit the mark unfortunately. we weren't really quite sure how believable he was at the end of the day. i was very disappointed, to be honest. you can't win them all. >> one of the most important transformations tim and his team have done, turning ralph fiennes into the dark voldemort, seen for the first time, we were able to show you how it was done. >> the face is something we finessed the technique over the years and basically, ralph fiennes wears prosthetic matrix and a number of dots we cover the area and have to replace with a digital prosthetic. we filmed ralph fiennes in all the action sequences and drama just normally. and removed his real nose in the computer afterwards and after we track the movement with the computer we replace it with our snape nose. there are moments we flare the nostrils to emphasize the points he's speaking or talking and animation and it has to be textured to look like it was his real skin. that's done through a lot of reference photos we ache take for every set we film and use those to help lighten the skin. >> another one of burke's favorite effects, the monster book of monsters from "harry potter and the prisoner of azkaban." >> this was done with a practical animated prop. the idea is it's got these teeth here. you can actually see it. snap and try and get harry and the great scene where the book is trying to get him. we have an animated book and practical book we used on set and we animate all these little tentacles as well. we could film that on the set with dan and a real animated book and times we replaced the book with a cg one. there have been thousands of computer animated effects. but he says you haven't spotted that. >> the real reward is when people realize they've been watching effects, especially will someone like harry potter. >> up next, rupert grint turns the tables on emma watson and daniel radcliffe. asks questions of his own. >> on the last day, i brought them both a trumpet and, yeah, a wwhy a trumpet. >> later, robbie coltrane and helena bonham carter, who reveal secrets from behind the scenes. >> i did 25 takes. i thought, you have no idea what's happening down there. >> on this larry king special, harry potter, the final chaptere better with travelocity's m best price guarantee. our girl's an architect. our boy's a genius. we are awesome parents! biddly-boop. [ male announcer ] if you find a lower rate on a room you've booked, we won't just match it. we'll give you $50 towards your next trip. [ gnome ] it's go time. hi there, i'm tom felton and i play draco malfoy in the harry potter films. i'm very lucky to play hogwarts in the last ten years. i want to say thank you very much and i really hope you enjoy the last film. >> in harry potter and the deathly hallows part 2, gone is the innocence of childhood. harry, hermione and ron face real danger, life and death. >> a different film, really. all kind of quite tense. >> i think people will be shocked how brutal it is. >> it was the last two films were dark for me, to play them, and to be in that world everyday. >> we did so many scenes there was adrenaline and fear required, it was intense, genuinely. >> like many children across the world, emma watson and rupert grint were huge fans of harry potter. >> when i read the books, i felt a strong connection and even entered a look alike competition in the paper. i won the best ron. >> i loved those books. my dad used to read them to my brother and all. i just loved them and love hermione. >> they spent almost half their lives playing hermione granger and ron weasley. now back to the beginning. >> in my first audition, i first met dan and emma, it does seem like such a long time ago. >> nicholas flamel is the only known maker of the sorceror's stone. >> with were kind of reading, a scene from the forbidden section of the library. i remember hearing my voice, really kind of quiet. >> the three young stars have gone through so much together, becoming famous the world over at such a young age. >> it's been 11 years of quite an intimate process, where you're kind of with each other every day all year, every year. it's quite unique kind of thing we've shared with each other, i think. >> so what do they really think of each other? >> he's always been quite hyperactive, quite loud. he's very funny. >> dan is the most energetic, hard working kind person. he works very, very hard. so he's pretty incredible. >> she's great. she's really kind of caring. >> he's a real eccentric. he's a genuine eccentric. i've never been to his house but i would love to go because it sounds like it's full of the most magical wonderful things. he has llamas and miniature pigs and he's bought a hovercraft. he has a cow on one of his roofs in his house in london, and he bought an ice