The world certainly doesn’t need another comedy starring Michael Cera as a hapless teenager blundering his way into improbable sexual encounters — but how about one in which his id takes the physical form of a mustachioed cocksman with a penchant for arson? Yes, we thought so! Youth in Revolt, based on the C.D. Payne book, looks like just the thing to make us forget about Paper Heart and gives us hope that, should Scott Pilgrim turn out okay, some brave studio might one day let this guy portray an actual adult. Trailer of the week, hands down.