In a sequel that features the original's Channing Tatum only in cameo, a Baltimore teen (Briana Evigan, very winning) enrolls at an arts academy, leaving her street-dancing pals behind. So far, ho hum. But when she decides to form a new crew with her classmates, Step Up 2 the Streets improves considerably and it doesn't skimp on cool pretzel moves. Never mind that the movie heedlessly asks you to cheer against the less white, less privileged street kids. (Okay, mind a little.) B-

