Waiting for Guffman is a 1997 American mockumentary comedy film co-written and directed by Christopher Guest. The film's cast includes Catherine O'Hara, Eugene Levy, Fred Willard, and Parker Posey.
The title of the film is a reference to Samuel Beckett's 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.