Christopher Guest Quotes
I would make a huge distinction between theater improvisation and film improvisation. There isn't much improvisation in film - there's virtually none. The people that theoretically could be good at this in a theater situation don't necessarily do this in a film in a way that will work, because it's much broader on a stage. But in a movie, it has to be real, and the characters have to look entirely real because it's being done as a faux documentary, so there are even fewer actors that can do that on film.
Guest, Christopher. Interview by Tasha Robinson. The A.V. Club, Onion Inc., 16 Nov. 2006.
Christopher Haden-Guest, 5th Baron Haden-Guest, is an American–British screenwriter, composer, musician, director, actor, and comedian. Guest is most widely known in Hollywood for having written, directed, and starred in his series of comedy films shot in mock-documentary (mockumentary) style. Many scenes and character backgrounds in Guest's films are written and directed, although actors have no rehearsal time and the ensemble improvise scenes while filming them. The series of films began with This Is Spinal Tap (which he did not direct) and continued with Waiting for Guffman, Best in Show, A Mighty Wind, For Your Consideration, and Mascots.