Jason Moore's musical doesn't hit all the high notes, but guilty pleasures are seldom perfect. Anna Kendrick, Rebel Wilson, and Brittany Snow play members of a collegiate a cappella ensemble, the Bellas, who are out to redeem themselves after a disastrous appearance at the national competition. Kendrick's character, the lone wolf, can renovate the outdated group with her musical mash-up skills. Meanwhile, Elizabeth Banks and John Michael Higgins play commentators during the performance sequences, and their crude jokes break up any monotony. There are enough girl jokes (a group called the Menstrual Cycles) and gross gags (vomiting!) to let you forget you're being subjected to numbers like "Bring It On" or "Stick It." With its cattiness, bits of insanity, and love story, Pitch Perfect has a great time despite a formulaic plot. If this is what it takes to erase Glee: The 3D Concert Movie from our collective memories, then so be it.