In the documentary, \"Natalie Wood: What Remains Behind,\" Gregson Wagner shares never-before-seen home movies and intimate stories.

\"A lot of those home movies we hadn't seen at all because they had just been in this box. Super 8s and 16 millimeter,\" Gregson Wagner told \"Good Morning America's\" Chris Connelly. \"The biggest thing for me is that it just reminded me that I didn't dream the memories of my childhood. All that really happened.\"

\"PHOTO:
Silver Screen Collection/Getty Images
PHOTO: Natalie Wood in a studio portrait, circa 1965.
>

In the 70s, Gregson Wagner saw her mother remarry her first husband, actor Robert Wagner, now 90. Gregson Wagner interviews her stepfather in the documentary.

In their interview, Connelly asked Gregson Wagner what it was like to ask Wagner about the last night of Wood's life.

\"My heart was beating a bit because obviously he and I have spoken about that, but never on camera,\" Gregson Wagner said.

\"PHOTO:
Courtesy of HBO
PHOTO: Natalie Wood with her daughter, Natasha Gregson Wagner, in Hawaii, in 1978.
>

In November 1981, Wood drowned off the coast of Southern California’s Catalina Island during a night on a boat with Wagner and actor Christopher Walken.

\"PHOTO:
ABC News
PHOTO: Natasha Gregson Wagner, daughter of Hollywood star Natalie Wood, is shining a light on her mother and her mysterious death in a new HBO documentary.
>

\"To me, what the culprit was that night was the alcohol. Had that not been a factor, I think maybe things would've turned out a little differently,\" Gregson Wagner said.

\"You know, I feel closure about that night,\" she added. \"I'm hoping with the documentary we can focus on her life. I think if she were alive today she'd be on the forefront of equal pay for women, she'd be on the forefront fighting for equal rights for the LGBTQ community. She was so ahead of her time in many ways.\"

The documentary debuts Tuesday on HBO.

","canonicalUrl":"https://abcnews.com/GMA/Culture/natalie-woods-daughter-opens-mom-documentary/story?id=70488510","legacySlug":"/culture/story/natalie-woods-daughter-opens-mom-documentary-70488510","noIndexNoFollow":false},"publishTime":"20:09","publishDate":"05-04-2020","updatedTime":"20:36","updatedDate":"05-09-2020","socialImage":{"alt":"Natalie Wood in a business meeting.","credit":"Bill Ray / Courtesy of HBO","ratio":"16x9","url":"https://s.abcnews.com/images/GMA/natalie-wood-2-ht-ps-200405_hpMain_16x9_1600.jpg","width":992,"height":558},"datePublished":"5/4/2020 20:09:00 GMT","video":{"live":false,"id":70488510,"headline":"Natalie Wood’s daughter opens up","mediaAssetTitle":"GMA_NATALIE WOOD’S DAUGHTER SPEAKS OUT ABOUT HER NEW DOCUMENTARY_200504","description":"Wood died in 1981 at the age of 43.","duration":"3:30","posterImg":{"url":"https://s.abcnews.com/images/GMA/default-img-undefined.png","width":608,"height":342},"video":{"feed":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2020/05/200504_gma_connelly_0820_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8"},"playlist":["52851345","70486494","70450760"]},"relatedItems":[{"contentType":"story","date":"February 5, 2018","headline":"Detectives on Natalie Wood's 1981 death: 'We want to talk with Robert Wagner'","section":"culture","slug":"/culture/story/detectives-natalie-woods-mysterious-1981-death-talk-robert-52851345","id":52851345,"image":{"alt":"Detectives on Natalie Wood's 1981 death: 'We want to talk with Robert Wagner'","url":"https://s.abcnews.com/images/Entertainment/GTY-Robert-Wagner-Natalie-Wood-MEM-161118_4x3t_240.jpg","credit":"Earl Leaf/ Michael Ochs Archives/Getty Images","ratio":"1x1"}},{"contentType":"story","date":"May 4, 2020","headline":"Spike Lee explains why basketball fans love 'The Last Dance'","section":"culture","slug":"/culture/story/spike-lee-talks-iconic-nike-commercial-michael-jordan-70486494","id":70486494,"image":{"alt":"Spike Lee explains why basketball fans love 'The Last Dance'","url":"https://s.abcnews.com/images/GMA/jordan-spike-lee-file-gty-ml-200504_hpMain_4x3t_240.jpg","credit":"Andrew D. Bernstein/NBAE via Getty Images, FILE","ratio":"1x1"}},{"contentType":"story","date":"May 1, 2020","headline":"Queen + Adam Lambert put a quarantine spin on 'We Are the Champions'","section":"culture","slug":"/culture/story/queen-adam-lambert-put-quarantine-spin-champions-charity-70450760","id":70450760,"image":{"alt":"Queen + Adam Lambert put a quarantine spin on 'We Are the Champions'","url":"https://s.abcnews.com/images/GMA/queen-lambert-remake-ht-ps-200501_hpMain_4x3t_240.jpg","credit":"Queen/YouTube","ratio":"1x1"}}],"relatedContentSection":"news","schemaContent":{"name":"Natalie Wood’s daughter opens up","description":"Wood died in 1981 at the age of 43.","duration":"3:30","uploadDate":"05-04-2020","publication":"05-04-2020","images":"https://s.abcnews.com/images/GMA/default-img-undefined.png","url":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2020/05/200504_gma_connelly_0820_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","contentUrl":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2020/05/200504_gma_connelly_0820_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","link":"https://www.goodmorningamerica.com/culture/story/natalie-woods-daughter-opens-mom-documentary-70488510"}},"playlist":[{"id":"133810954","contentType":"story","section":"news"},{"id":"133779647","contentType":"story","section":"news"},{"id":"133810835","contentType":"story","section":"news"},{"id":"133749799","contentType":"story","section":"news"},{"id":"133777519","contentType":"story","section":"news"},{"id":"133748258","contentType":"story","section":"news"},{"id":"133730535","contentType":"story","section":"news"},{"id":"133712423","contentType":"story","section":"news"},{"id":"133694181","contentType":"story","section":"news"},{"id":"133688738","contentType":"story","section":"news"},{"id":"133616358","contentType":"story","section":"news"},{"id":"133616342","contentType":"story","section":"news"},{"id":"133522899","contentType":"story","section":"news"},{"id":"133584123","contentType":"story","section":"news"},{"id":"133579397","contentType":"story","section":"news"},{"id":"133482839","contentType":"story","section":"news"},{"id":"133390157","contentType":"story","section":"news"},{"id":"133415361","contentType":"story","section":"news"},{"id":"133414032","contentType":"story","section":"news"},{"id":"133380485","contentType":"story","section":"news"}],"kvps":{"pgtyp":"article","lang":"en","sp":"goodmorningamerica","programmatic":"true","bundleId":"com.abcnews"}},"analytics":{"accountID":"wdgnewwdgnewgmaweb","ns":"gma","pageName":"gma:culture:video","pageType":"video","globalSpecVersion":"v1.08","siteDifferentiator":"gma:site","tagID":"g_page01","userABCookie":"0","section":"culture","title":"Natalie Wood’s daughter opens up","pubTime":"16:09","pubDate":"05-04-2020","modTime":"16:36","modDate":"05-09-2020","taxonomyTags":"none","id":70488510,"editorialOtherSubjects":"","wordCount":"none","columns":"none","authors":"","authorsUnit":"none","authorsBureau":"none","subBrand":"Good Morning America","provider":"Good Morning America","videoName":"Natalie Wood’s daughter opens up","mediaAssetTitle":"GMA_NATALIE WOOD’S DAUGHTER SPEAKS OUT ABOUT HER NEW DOCUMENTARY_200504","videoId":70488510,"mediaOnPage":"video","legacySlug":"/culture/story/natalie-woods-daughter-opens-mom-documentary-70488510"},"taboola":{}},"request":{"headers":{},"httpVersion":"1.1","method":"GET","url":"/video/70488510","vary":{"host":"www.goodmorningamerica.com","cached":true,"path":"/video/70488510","forwarded-proto":"https","device":"desktop","userab":"0"}},"viewport":{"width":1260,"height":0},"user":{}};