OPENING FRIDAY Be Kind Rewind (PG-13) Jack Black and Mos Def are video store employees who are forced to re-create movies themselves after all the tapes are erased. • Charlie Bartlett (R) A rich kid becomes the self-appointed psychiatrist to the kids in his high school. • Possession (PG-13) Sarah Michelle Gellar plays a woman whose husband may have assumed a new identity following a traumatic car wreck. • The Signal (R) A horror film told from three perspectives. • Steep (PG) A documentary on the legacy of extreme skiing. • Vantage Point (PG-13) The attempted assassination of a president is told from five different perspectives. • Witless Protection (PG-13) A small-town sheriff sees what he thinks is a kidnapping and rushes to the rescue.