Steve Carell plays the title role in this sloppy sitcom-in-the-making, the feature directorial debut of TV veteran Judd Apatow. The hero works at an electronics superstore, and various wacky coworkers serve as running gags, helping him along as he tries to lose his cherry. Catherine Keener shines the most in this prefab atmosphere, as the kooky middle-aged love interest. Carell and Apatow collaborated on the script; it does manage a few laughs, but the characters seldom progress beyond the two-dimensional. R, 116 min. (JR)