The Deep.

An unfinished feature film directed by Orson Welles and based on Charles Williams’s Dead Calm (1963), filmed between 1966 and 1969 off the Yugoslav coast. Starring Welles, Jeanne Moreau, and Laurence Harvey, the project follows a newlywed couple whose yacht voyage becomes a psychological thriller after encountering a drifting vessel. The film remains incomplete, with missing scenes, unfinished sound, and surviving only in workprint form.