Walk Hard: The Dewey Cox Story, 15

Walk Hard is a winningly cheeky parody of the rock '*'roll biopic genre, specifically Walk the Line and Ray, two films that were so similar and so formulaic that they were almost parodies of each other. John C Reilly plays it very nearly straight as a country superstar who has all the usual childhood traumas, drug binges and rehab stints, as well as a knack for hitting on his song titles mid-conversation.

Co-written by Judd Apatow (The 40-Year-Old Virgin), the film is far more fun than the various Scary Movie abominations which have passed for spoofs lately, but most music biopics drag on too long, and Walk Hard is such an accurate pastiche that it drags on too long, too.