A Prairie Home Companion is not a masterpiece in the grand, historical sense, but on its own terms, it's pretty much a perfect film. Scripted by Garrison Keillor, directed by the legendary Robert Altman, and starring a dream cast that manages to include everyone from the most nominated actress in Oscar history to the most gossiped about young starlet of today, the film's consummate professionalism oozes off the screen. This  – to see professional entertainers, not breaking a sweat whilst entertaining – should not be surprising, but the simple, classical ease of the thing feels like a revelation.