The Deep is an unfinished film directed by Orson Welles and based on the novel Dead Calm by Charles Williams, which would later be adapted into the film of the same title. Welles produced and wrote the film, and also played the role of Russ Brewer opposite Jeanne Moreau and Laurence Harvey.
Though the production was deeply troubled, many of the people involved have spoken highly of the film, including lead Jeanne Moreau, who in 2000 looked back on the film as a fantastic experience and noting that the only disastrous thing was that later on, the film disappeared. Welles struggled to finish the film after production effectively halted in 1969. He edited trailers and short scenes to help secure financing and at one point contacted Charlton Heston about recording voiceover narration.Because the original negative has been lost, the only versions of the film that exist are two work prints, one in color and the other in black and white. The Munich Film Museum later created a version using these elements. ........
Source: Wikipedia