Ron Mann directs and produces this documentary about American film-maker Robert Altman, whose works include 'MASH' (1970), 'McCabe and Mrs Miller' (1971) and 'Nashville' (1975). The documentary features contributions from, amongst others, Julianne Moore, Bruce Willis, Robin Williams, James Caan, Keith Carradine and Lily Tomlin, as well as archive footage of the man himself.