Director Trish Sie’s feature debut, with a script from John Swetnam, begins in lively fashion, though. Sean (the blankly handsome and hunky Ryan Guzman) and his pals in the dance crew The Mob work their butts off at commercial auditions while wearing ridiculous costumes and incorporating various products. It’s the dance-film version of a rom-com bad date montage. These are the performers who moved from Miami to Los Angeles after winning a spot in a high-profile Nike ad in the previous movie, 2012’s “Step Up Revolution," but now they’re finding that surviving as working dancers in L.A. is nearly impossible and decide to go back home—all except Sean.