Producer Judd Apatow (Knocked Up, The 40-Year-Old Virgin) dilutes his brand for the tweener set in this high school comedy, which lacks much of an edge without any sex, drugs, or profanity. Three bullied freshmen (Nate Hartley, Troy Gentile, David Dorfman) hire a bodyguard (Owen Wilson), unaware that he's a homeless, thieving bum from the Santa Monica oceanfront. The overacting young performers come across like movie kids and seem at odds with the laid-back Wilson, at times so soft-spoken he's barely audible. The action sags in the middle, but director Steven Brill (Little Nicky) gets mileage out of some funny cameos and good one-liners; Apatow regular Seth Rogen wrote the script with Kristofor Brown, working from a story by John Hughes. PG-13, 102 min.