About the film
Altman is a 2014 documentary film about the life and career of film director Robert Altman. The film was directed and produced by Ron Mann. It features brief contributions by several actors who had appeared in Altman's films, such as Robin Williams, Bruce Willis, Julianne Moore, Michael Murphy and Elliott Gould, as well as director Paul Thomas Anderson, who served as a "backup" director on A Prairie Home Companion.
From the film's Wikipedia article (CC BY-SA 4.0).