Barry Pepper, Susan Sarandon, and Dwayne Johnson in SnitchSNITCH

As a film star, Dwayne Johnson possesses a lot of gifts - or, at least, sufficiently impressive gifts for what his résumé has required. Though God knows he's physically intimidating, Johnson is also our most thoroughly genial of ass-kickers, with even his most violent of big-screen endeavors leavened by a welcome lightness of touch and hint of amused self-mockery. And as he has proved in all those bland family entertainments over the years, Johnson still manages to appear game and committed in movies that don't deserve his considerable charisma, often salvaging entire scenes through unexpectedly silly gestures or readings that show just how inventive a comedian he can be. (I was happy for 10 whole minutes following his brief channeling of co-star Michael Caine in Journey 2: The Mysterious Island. They were about the only 10 minutes during the movie in which I was happy.)