Zach Galifianakis: Live at the Purple Onion

Idiosyncratic stand-up comic Zach Galifianakis brings his wry brand of piano-based non-sequiturs to the stage of San Francisco's famed Purple Onion comedy club, and the cameras roll to catch every offbeat moment for this release that's sure to keep die-hard fans doubled over in laughter, and everyone else scratching their heads in giddy bemusement.