But for all the raunchiness surrounding its characters, One Night Only ultimately reveals itself to be something surprisingly old-fashioned: a romantic comedy that actually believes in romance. A chance collision brings Allie and Owen together, sending them across New York over the course of one increasingly chaotic night. The Mandate provides the gimmick, but Gluck wisely doesn’t allow it to completely swallow the romantic comedy happening within it. She’s effortlessly funny as Allie, particularly when navigating the indignities of her music career, and the film makes surprisingly effective use of Barbaro’s genuinely impressive singing voice. Turner, meanwhile, continues to prove after Eternity that romantic comedy suits him remarkably well.