Angel Heart is a 1987 American neo-noir psychological horror film, and an adaptation of William Hjortsberg's 1978 novel Falling Angel. Written and directed by Alan Parker, the film stars Mickey Rourke, Robert De Niro and Lisa Bonet. The story follows Harry Angel (Rourke), a New York City private investigator hired to solve the disappearance of a man known as Johnny Favorite. Angel's investigation takes him to New Orleans, where he becomes embroiled in a series of brutal murders.
Following publication of the novel, Hjortsberg began developing a screenplay for a film adaptation, but found that no film studio was willing to produce his script. The project resurfaced in 1985, when producer Elliott Kastner brought the book to Parker's attention. Parker began work on a new script, and in doing so, made several changes from Hjortsberg's novel. The independent film studio Carolco Pictures produced Angel Heart with a budget of $18 million. Principal photography commenced in March 1986 and concluded in June of that year; filming took place on location in New York and New Orleans.
Before its release, Angel Heart gained controversy for its casting of Bonet (then known for her role on the family-oriented sitcom The Cosby Show) and her graphic sex scene with Rourke, which faced censorship issues from the Motion Picture Association of America. Parker was forced to remove ten seconds of sexual content to avoid an "X" rating and secure the "R" rating that the film's distributor, TriStar Pictures, wanted. An unrated version of the film was later released on home video. Angel Heart received mixed reviews and underperformed at the North American box office, grossing $17 million during its theatrical run. It has since gained a cult following, with some reviewers calling it one of the best horror films ever made.