Claim: Unforgettable is a film.

Unforgettable is a 2017 American erotic thriller film directed by Denise Di Novi -LRB- in her directorial debut -RRB- and written by Christina Hodson and David Leslie Johnson . The film stars Katherine Heigl , Rosario Dawson , Geoff Stults , Isabella Rice and Cheryl Ladd , and follows a divorcée who begins to torment the new fiancé of her ex-husband .   Principal photography began on August 17 , 2015 in Los Angeles . The film was released on April 21 , 2017 by Warner Bros. and has grossed $ 15 million against its $ 12 million budget .