Underclassman

Yes, it's really silly. And no, you won't remember a thing about it the second it's over. But adults looking for fast-moving, nonviolent fun that kids might actually enjoy could do a lot worse. In a plotpoint right out of 21 Jump Street, fresh-faced undercover LAPD bike cop Tracy "Tre" Stokes (Nick Cannon) is sent back to highschool to help crack a stolen-car ring that appears to be operating out of one of L.A.'s poshest private academies. The assignment isn't exactly the plum career opportunity Tre thought it was when he volunteered — he dreams of one day making detective, like his dear, departed pop. In fact, it's punishment for the "all passion, no procedur...