[2] 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.

The film focuses in part on the problems Altman faced over the course of his filmmaking career, including writing screenplays (he sold a script to RKO for the 1948 picture Bodyguard) after World War II, and working as a director and writer of industrial films for the Calvin Company, and for television.

Altman rose to prominence in the 1970s with films such as M*A*S*H and The Long Goodbye, before commercial flops forced a flight to Europe in the 1980s with projects such as Popeye.

[3] Peter Bradshaw of The Guardian praised the film, only saying that, "Ron Mann's terrifically warm and generous documentary tribute to Robert Altman is, for me, spoiled only fractionally by its gimmick of putting the director's famous collaborators on the spot, on-camera, and demanding a synonym for 'Altmanesque'.

"[4] Mark Kermode of The Observer was, likewise, critical of Mann's choices, stating, "Home-movie footage and well-sourced TV/movie clips provide a tantalising patchwork upon which the narrative fails to build, with investigation of Altman's methods limited to platitudes about a script being little more than a blueprint, and fleeting descriptions of his sound-recording techniques.