One of the most revealing aspects of this well-made documentary on camp-tastic cabaret Casanova Rufus Wainwright is the way it allows us to see how profoundly genetics shapes a kid. In between frank chats with the always garrulous Rufus, mom Kate McGarrigle and dad Loudon Wainwright III weigh in on the crooner's formative years (he dreamed of playing Annie on Broadway! He had perfect pitch at 18 months!), and you see how much Rufus and sister Martha have inherited both their parents' talent and mannerisms.
Beyond the affecting portrait of a somewhat dysfunctional showbiz family, All I Want gives you a nice warts-and-all idea of the man behind the drama, and balances now-standard rants about his crystal meth addiction with snippets from famous fans and collaborators. Erstwhile producer Pierre Marchand's grim segment shows how much Wainwright's drug use marred their artistic relationship, while Van Dyke Parks comes off as an unintentionally hilarious Truman Capote/Tennessee Williams composite. I get why Elton John is interviewed, but why do we care how the dude from Keane feels about Rufus? There's also lovely concert footage, a wealth of archival material, including amusing home movies of the gawky preteen Wainwright sibs hamming it up, and a bonus promo film from 1998.