up, and he starts to hang around the playboy mansion and that's when dorothy stratten meets peter bogdanovich mignon to a hot dog on a stick, there's a big difference. >> he ostensibly sees someone he wants to cast for a part in his movie. "oh, it's just a small role, but you would be perfect." >> she was so mesmerizing. when he met her, he was compelled to actually take a role and create it for her. >> when i met dorothy i thought it would be great to have her in the picture. so the movie evolved and i went to los angeles and wrote it. >> this was a cinderella story. he was, like, picking her up from just being this nobody, and elevating her to be the queen of hollywood. >> ms. stratten is with us this morning. good morning, dorothy. >> good morning. >> dorothy thought, let peter bogdanovich make her into what paul couldn't make her into. >> i'm in the middle of another movie right now that i'm shooting in new york, called "they all laughed." with peter bogdanovich is directing, audrey hepburn, and ben gazzara starring. >> do you have some talking parts? >> oh, i have a co-starring role. >>

director peter bogdanovich. >> i'm in the middle of another movie called "they all laughed." g. >> it was absolutely a movie about peter. very auto biographerical. >> will you marry me? >> okay, i will. >> you will? >> why, yes, after my divorce. >> there were fireworks, and i could tell that he was crazy about her. >> she moves essentially out of the hotel she's saying in for production and moves in with him. they ray try to keep it sea cor, but the world finds out. >> when you're comparing fillet mignon to hot dog on a stick, there's a big difference. >> reporter: but paul was not going to let her go easily. >> for paul, losing dorothy to peter bogdanovich was like the ultimate insult, because petter in his own way was a much paul. he had discovered a star. just like when he found her it at the dairy queen. >> i just knew he was capable of doing harm and she should be really careful. he's the kind of guy that could kill her. >> reporter: when she asked him for a divorce, paul became distraught and angry. >> it was after dorothy confessed that she loved bogdanovich and wanted

. >> reporter: as stratten's star rose, a big-time movie director, peter bogdanovich became fascinated i will. >> compared to paul, bogdanovich was a prince. when you are comparing filet mignon to hot dog on a stick, there's a big difference. >> reporter: between her newfound success and love affair with bogdanovich, dorothy decided to separate from snider. >> so she drove to his house and met with him there. >> she never felt there was any danger with anything with paul. >> and then bang. she was murdered. >> now, after killing stratten, snider turned the gun on himself. her life and death have inspired countless books and movies including bob fosse's classic film "star 80." >> i remember that. you can see the special on a special two-hour "20/20" airs at 9:00, 8:00 central right here on abc. cecilia? >>> we turn to our series on the secrets of tiktok, and what parents need to know. experts are raising concerns that young kids using this popular app could be exposed to inappropriate content. becky worley is here with a closer look. good morning, becky. >> reporter: tiktok has over a b