>> i know we've done it in kind of an unorthodox way jennifer's interview. >> i've gone through struggles both ways. >> finding faith after her split. and forget the bride. here comes martha. >> don't say it's a horrible choice, it's already chosen. >> looking for the perfect dress as we flash back to her wedding day. >> my waist was 19 inches. how big is your waist? >> now, for march 4th, 2016, this is "entertainment tonight." hi, everybody. thanks for joining us at the end of another busy week. >> we have more big news for you here is tonight's top story. was the murder weapon found at o.j.'s home? only i talked to marcia clark today. a knife apparently was f the rockingham estate when demolished. what's your initial reaction? >> it's a remarkable development if it does turn out to be connected to the murders of ron and nicole. i just hope the truth comes out about the situation. >> reporter: "e.t." today exclusive with marcia clark, the lead prosecutor in simpson's murder trial finds it baffling. >> it might be a hoax, it be somebody who planted it an then just pretended to find it. >> reporter: the knife the latest twist into the unsolved 2-year-old murders of nicole brown simpson and her friend ron goldman. the house here on what was once o.j.'s property was demolished in 1998 and police say it's possible that et when the knife was discovered. the finder of the knife apparently turned it over to an officer who was working as a security officer during production of a movie and police say he held on to it until very recently. >> within the last month lapd became aware of an item that item has been recovered by robbery homicide investigators. it is being treated as we would all evidence. >> reporter: do you think there could be dna on that knife? >> it's very possible. they recover dna on mummies in egypt, so it's entirely possible that if there is dna to be recovered it could be found, especially with today's technology, which is much more sensitive. >> not guilty of the crime of mu >> reporter: simpson was acquitted in a trial that lasted more than eight months. but could he be tried again? >> the likelihood of any prosecution stemming from the evidence is very, very, very slim, but we have to find out what this means. >> reporter: clark's role in the case has been back in the news after the success of the fx series "the people v. o.j. simpson." >> he can't hide forever. >> reporter: clark is played by sarah paulson and it's been the number one show on cable on tuesday nights. is it ironic this comes up now with the spotlight shined on the case again because of the television show? >> it really is a bizarre coincidence. it is completely strange. i have heard that the reason that he -- this person who had the knife thought of calling the police department is because of the series. next, o.j.'s lost interview. >> a lot of elements of, you know, attractive people, well-known celebrity money, sex appeal. >> reporter: o.j. takes on the media in an exclusive just uncovered interview with two pepperdine studen tommy lee and mindi thomas. it was shot in 1997 on his rockingham estate after he was found not guilty. >> i thought the media let the american public and myself and nicole and ron down in trying to find the true perpetrators and i thought it became a money maker for the tabloids. >> as for the found knife 19 years later, police say the investigation is still in the early stages. >> if you want to learn more about the story go to etonline.com. seven months after bobbi kristina passed away at the age of 22, her autopsy report has been unsealed. >> we have the document and went through it line by line. here's what it reveals about the tragic death of whitney an bobby's daughter. >> reporter: released today as her ex, nick gordon, wishes her a happy birthday the medical examiner's official ca death is pneumonia brought on, simply put, by lack of oxygen caused y drowning and drug intoxication. the drug cocktail included marijuana, cocaine, an anti-anxiety med and morphine. what's eerie is the comparison with what her mother's autopsy said was in her system, also marijuana, cocaine, and an anti-anxiety med, along with a muscle relaxant and antihistamine. forensic pathologyist said the similarities could be more than coincidence. >> maybe imitating her mother's death. both women in a bathtub with drugs. what are the odds of that happening by chance? >> reporter: here's anoth shocker, she had no less than 28 small scars on her head, neck, torso, extremities. was it possible she was a cutter? >> these are very strongly suggestive of cutting and not the kind of cutting from an assailant, but rather, a small cuts that some people inflict upon themselves. >> reporter: another comparison between autopsies indicate a bit of a generational gap between whitney and chrissy. while she had body piercings, whitney had a few. bobby was tatted, her mother wasn't. while whitney had breast implants, chrissy didn't. gwyneth paltrow served her estranged husband with divorce papers and they consciously uncoupled. the pair has yet to finalize things but gwyneth is moving on. carly sat down with the oscar winner to talk about her new endeavor and life in the spot light. >> tell us about what's going on there? >> well, it's a regular friday night at my house and i'm getting my highlights done. there's violet and apple in the background having dinner. >> multitasking dinner. >> usually. that's how it goes. >> how it rolls in the house. >> of course, the paltrow house is anything but regular. the first football game the kids went to is the super bowl and their dad was recording with beyonce. >> i loved the instagram post from the super bowl with apple and blue ivy. >> it's funny, my kids' dad and blue's mom are always like doing these incredible mind bogglin things and i'm always with the kids and the snack bag like baby wipes and juice boxes and stuff. it's pretty much how it is these days. >> reporter: gwyneth deals with one of the most famous divorces in hollywood she has great advice for couples going throu the same experience. >> you have to constantly let go of old ideas, old resentments. you have to put the kids first. if you once loved the person enough to have children with them you have to focus on what you still love about them and what beautiful about them. i acknowledge we've done it in a kind of unorthodox way, but it's working for us. >> reporter: also working for gwyneth her company goop. this week she launched a skin care line on goop.com. >> apple is obsessed with makeup which is why i've gotten serious about trying to participate in nontoxic makeup and personal care. as an actress and a woman, you want something that real and is going to help with your fine lines and wrinkles. what we want to do is look our best as we age gracefully. more news to get to, starting with this. an exclusive interview with the newest dancing star. >> they actually kept it a secree. >> just announced gma's meteorologist ginger zee and val. >> i'm a huge fan of astrology and meteors. >> that would be astronomy but he is psyched to be paired with the dancing fan who gave birth 11 weeks ago. >> the doctor gave me the go ahead. we're safe. >> obviously, i don't want to push anything that shouldn't be pushed. >> reporter: the full cast will be revealed on gma tuesday. what about the other couples announced? keo and jody sweetin from "fuller house." >> i know her capabilities.& she all right. >> reporter: now to that other competition show "idol" does nom j-lo have another gig. >> you have a new record deal. tell us about that. >> yes, i do. l.a. reid and i back at epic. it's another thing i'm still working on right now. >> reporter: no kidding. that's on top of a vegas show, "shades of blue" and "idol" backstage for last night's elimination on fox and after more than a year away from making music j-lo is back. >> working on music the past couple months and we should be putting out something soon. coming up on "e.t." -- cameron mathison with jennifer garner talking about her new faith based film and this r-rated viral video. >> [ bleep ]. >> i hope my parents don't see it. >> later in the show we talk to lady gaga's stylist sho the oscar dress gaga didn't wear. >> what was the look leet behind. >> martha stewart offers up wedding advice to mariah carey. country legend loretta lynne at 83 gives us thoughts on everything from tayl -- your daughter wants to stay organic. your husband wants to stay free from artificial ingredients. you want to stay free from artificial preservatives. and your debit card wants to stay on a diet. fill your cart with small victories like giant's nature's promise brand. great prices on over 800 items. eat well for less. only at my giant. they recently rated their care experience at over 3,500 hospitals nationwide in a survey conducted for the centers for medicare and medicaid services. fewer than 6% received 5 stars. among them was cancer treatment centers of america in philadelphia. learn more at cancercenter.com slash eastern. cancer treatment centers of america. care that never quits. appointments available now. i'm not leaving this hospital. >> that is jennifer garner in "miracles from heaven" going through a tough time when she shot this movie so we sat down for our conversation, i wanted to know, how important faith has been in her life? >> you can either see your life as having no miracles or you can see your life as being filled with miracles. >> i never doubted. a day in my life. >> reporter: handled her split from ben with strength and dignity and even though her movie has put her square in the spotlight, jennifer says it's also been her saving grace. >> i think it's such a powerful message and i'm wondering just how you can relate to that your own experience. >> the minister in the movie says something that i loved so much. he says, i've gone -- everybody struggles, right, and i have struggled. you know this line? i've gone t struggles both ways. i've done it with faith and i've done it without. let me tell you, it's a lot better with. >> this film in itself a miracle for you. >> it was a very difficult choice because i don't typically play the lead in films. it takes too much time away from my kids. this film i kind of went to them and said what do you all think. i really feel compelled to this story and my daughter is sweet and said mom, it's really your turn. we'll be okay. you should do it. >> i'm scared, mo >> me too. >> jen plays mom kristi based on the true story. kelly rogers plays her daughter anna who is diagnosed with an incurable disease. >> it's the real anna, guys. >> favorite moments from being on set? >> favorite moments. most of them are definitely with jen because we did a lot of arts and crafts. >> reporter: through it all jen has never lost her sense of humoo even playing the saxophone and telling off color bedtime stories in the viral videos. >> the funny youtube video, the bedtime story i hope you have not seen. >> cozy and warm in your bed my dear, now go to [ bleep ] sleep. >> i hope my parents don't see it. >> i have to say what impresses me the most no matter what she's going through and dealing with, her three children with ben, always come first and that is my parenting mantra as well. >> totally agree. coming up after the break, can martha say yes to the dress. >> you have to tread lightly. >> we are with her as she plans a big wedding. >> everybody needs help. >> and we talk to the queen of country music loretta, seeing ghosts in her house. >> the place is haunted i'm telling you. >> that is straight ahead. closed captioning provided by -- in tonight's fashion fix, lady gaga's designer and stylist gives us the secrets to her st >> never walks into a room and thinks she is up here and someone down here never. >> brandon is the man behind the three oscar looks and the men's wear inspired outfit had to be perfect. >> it's personal it to her that song and so personal to so many different people so i wanted to be respectful and so did she. ♪ >> gaga made a pact with her fellow sexual assault survivors. >> one girl said, i really want to get matching tattoos. >> the 31-year-old maxwell from texas has his own fashion brand. turns out he created a fourth oscar dress. >> had she won, what was the look left behind? >> that was actually a look from the show. we did a black velvet strapless mini dress with peplum on the side and for her we did it in a sort of celery velvet a long gown. let's talk bridal fashion now. we cannot watch mariah to tie the knot with james. martha stewart tells us she expects you to spare no expense. >> they have money. one thing they have. >> she has advice for people who don't have a billionaire's budget. >> hi, thank you so much for coming. >> i understand that you have a slight dilemma. >> every bride needs help all this brides are strong minded and willed. >> reporter: the domestic goddess helps on say yes to the dress and if you're going to ask martha, be prepared for the truth. >> you tried that on. >> i didn't. >> don't think about the budget. >> from the beginning of her choosing until the actual filming of the segment, she probably lost ten pounds. the dresses were not exactly fitting her perfectly. >> we have to tread lightly. can't say that's a horrible dress. i think it's a little rigid. >> it's fun. >> not everyone can haveemartha consult on their i dos but she says the next best thing is her book, "martha stewart wedding ideas an inspirations". >> i don't let you use the word bible but it is the bible. >> one of the key pieces advice you give in your book. >> you want to have a day that you will remember fondly. so we advise if you can afford it, to have a wedding plan help you with lots of those details. >> reporter: budget wisely, the most costly item she says spend 40% for food, 10 to 5% for the reception venue and rental 10% for fashion including that dress, and the biggest bridal mistake? >> overreaching is one thing. spending too much money another thing, going into debt. and third is you get too nervous and to be angry and frustrated during the whole planning process. >> she's not planning mariah's wedding but has a suggestion. >> over the top lavish lavish. this wedding i'm sure is going to be a spectacle, marrying one of the richest men in australia. >> reporter: she got married in 1961 and was a do-it-yourselfer back then. >> i made my own dress. that's me. i made the hat. the pillbox which was the style and my waist is 19 inches. how big is your waist? >> why do you have to put it on me right now. >> by the way, your head is supposed to be the same circumference as your waist. on your wedding day it should be -- your waist a little less than your head. >> okay. vivienne. ♪ ♪ i was born a coal miner's daughter ♪ country legend loretta lynn 15 years old when she got married and now the coal miner's daughter is 83 still going her first album in 12 years just dropped today and we talked to her about everything from he music to her politics and why she thinks donald trump could be president. >> can you all say, president trump. yes. if he keeps it up on a lot of things. >> reporter: an icon who says what she thinks. >> i think i worked probably harder than anybody in the business. people today are too lazy to do this kind of thi >> reporter: preach, miss loretta. ♪ i should have known there's no use >> reporter: gwyneth adores her, so does pharrell, and she's miranda's idol. >> loretta said exactly what she was going through in her music. that's why it resonates with us. >> miranda and me are the same type of thing you know. >> reporter: loretta has an opinion on everybody. listen to her take on taylor swift. >> she wanted to be top. taylor, get it, girl. that's what you want. i'm about as pop as cornbread. >> reporter: country to the core. we first met her 1982 when she was 50. >> when i was a little girl growing up i never dreamed about ever being a country singer. >> reporter: growing up poor, today loretta lives in this tennessee >> the place is hauntee. i'm telling you. i did see a woman on the balcony of the big mansion. 3:00 in the morning you coul hear the high heels click click click going up the stairs. >> reporter: her new album "full circle" and american masters loretta lynch still a mountain girl premieres on pbs and last night she brought the house down on fallon. ♪ she'll take everything >> reporter: hitting the road we hope she goes on forever. >> i feel great. and i love to get out there and sing. i have people from ten years old to 80. >> she said there was one song she never gets tired of singing "coal miner's daughter" she still is a coal miner's daughter". >> i love that movie. >> in our birthdays which actress auditioned for elaine on "seinfeld" is it teri hatcher brooke shields or patricia heaton. >> the answer is coming up next. next week on "e.t." we look inside the third "divergent" etonline.com. travel consideration provided by -- welcome back to the show. tonight's "e.t." birthdays which actress auditioned for the role of elaine on "seinfeld"? that is patricia heaton who turns 58 today. we're out of time but hav one more thing we want you to check out before we go. >> have a great weekend, everybody. bye. >> new in theaters today - >> good evening. >> shakira is a singing gazelle in zootopia, a city run by animals, but at home she runs after two little kids. >> mine is like having twins but worse because one is 3 years old, and i have to be like running behind him all the and the other one just learned how to walk, and he's a hazard. >> jason bateman plays a fox, jennifer goodwin first bunny police officer, the film offers a message about diversity never letting anything stand in your way. >> i am a real cop. >> never let them see they get to you >> we all have judy moments in our lives. when i was a little girl dreaming real big, you know, unthinkable for someone like me. and here i am. "the insider" counting down the biggest stories tracking today. number one, inside hollywood's baby bump brigade. kelly and chrissy. >> i'm a little tired. >> who will be first in the race to the delivery room. >> i mean i feel huge. i feel like i'm ready to pop. >> being pregnant and in the hollywood spotlight involves a bit more scrutiny >> then simon cowell finally returns to tv. has his 2-year-old son softened his harsh judgment? >> i was. >> hola. >> along came dora. >> number three, who's hotter? batman or superman? >> very handsome, ben affleck is a little more rugged and weathered. >> inside their duel covers for the month's most anticipated movie. plus, our "insider" bonus, lords and ladies, time to bid ado to "downton abbey." >> are you sad or happy? bittersweet? >> is this really good-bye. >> could this really be the end of it? >> it's time. >> there are many rumors about a film. now hollywood from the inside out, "the insider," together with yahoo! hello, and welcome to "the insider." >> we're tracking the biggest stories in hollywood today. >> meghan trainor reveals, "i