The TV show that made Johnny Depp a star is little more than a jumping-off point for the big-screen ൝ Jump Street," a rowdy, raunchy update that aims for laughs over action and delivers them intermittently.

Jonah Hill and Channing Tatum are surprisingly amusing together in a mismatched pairing of newbie cops sent undercover as high school kids to root out a drug ring. A co.....