Waiting for Guffman is a mockumentary, co-written and directed by Christopher Guest that was released in 1997. Its cast included Catherine O'Hara, Eugene Levy, Fred Willard, and Parker Posey.The title of the film is a reference to the Samuel Beckett play, Waiting for Godot. As in the other mockumentaries created by Guest, the majority of the dialogue is improvised. Because the film is about the production of a stage musical, it contains several original musical numbers.