A Mighty Wind is a 2003 American mockumentary comedy film about a folk music reunion concert in which three folk bands reunite for a television performance for the first time in decades. Co-written (with Eugene Levy), directed, and composed by Christopher Guest, the film is widely acknowledged to reference folk music producer Harold Leventhal as the inspiration for the character of Irving Steinbloom and more broadly parodies the American folk music revival of the early 1960s and its personalities. The film stars Guest and Levy alongside Bob Balaban, John Michael Higgins, Jane Lynch, Michael McKean, Catherine O'Hara, Parker Posey, Harry Shearer and Fred Willard.

Guest co-stars and reunites many of his company of actors from This Is Spinal Tap, Waiting for Guffman, and Best in Show for this film, including Eugene Levy, Catherine O'Hara, Michael McKean, Harry Shearer, Fred Willard, Bob Balaban, Ed Begley Jr., Jennifer Coolidge, John Michael Higgins, Jane Lynch and Parker Posey.