The Cheap Detective

The Cheap Detective is a 1978 American satirical comedy film written by Neil Simon and directed by Robert Moore as a followup to their successful Murder by Death Columbia, 1976.

Lou Peckinpaugh Peter Falk, a bumbling San Francisco private detective, tries to prove himself innocent of his partners murder while helping a bizarre array of characters recover a lost treasure. The film spoofs Casablanca, The Maltese Falcon, Chinatown, and To Have and Have Not. The scene in the restaurant with Peckinpaugh and Pepe Damascus mocks the opening scene of The Big Sleep.

Source: Wikipedia