They All Laughed (1981)

Synopsis
Peter Bogdanovich wrote and directed this quirky romantic comedy that was shelved by Twentieth Century-Fox for a year, until Bogdanovich purchased the film from Fox and tried to distribute it himself, with limited success. Suave John Russo (Ben Gazzara), inept Charles Rutledge (John Ritter), and hip Arthur Brodsky (Blaine Novak) all work for a detective agency, where they are assigned to follow a trio of beautiful women -- Angela Niotes (Audrey Hepburn), Deborah Wilson (Patti Hansen) and Dolores Martin (Dorothy Stratten) -- whom their husbands think are cheating on them. Soon the three detectives all become romantically involved with the women they are trailing. In a real life scenario that overshadowed the film itself, Bogdanovich was having an affair with Dorothy Stratten during the production and they were being followed by a detective hired by her husband Paul Snider, who as a result ended up murdering his wife and himself. ~ Paul Brenner, All Movie Guide