Gordon-Levitt poignant in ‘50/50’

“50/50”: Joseph Gordon-Levitt is touching, funny and fierce as a young comedy writer with cancer, too busy comforting family and friends to process his diagnosis. Seth Rogen co-stars as his best friend and co-worker. (1:39, R) • • •

“Real Steel”: This futuristic “Rocky” set in the world of robot wrestling stars Hugh Jackman as a has-been boxer and Dakota Goyo as his estranged son who retool a discarded, rusting, second-generation robot that is the underbot in a fight with a shiny 5G automaton. (2:07, PG-13) • • •

Also released this week: “Happy, Happy,” “Limelight,” “Paranormal Activity 3,” “The Whistleblower”