What if the government decided that singles could only have sex one night a year? That bizarre idea forms the basis of One Night Only, the new rom-com from director Will Gluck (whom you know from Anyone But You) starring Monica Barbaro and Callum Turner. And also not unimportant: I called Monica and Callum to ask them for their best dating advice. The film is set in New York, where singer Allie (played by Monica Barbaro) and pizza maker Owen (Callum Turner) are both preparing for this night. And besides actors Monica and Callum, the film was full of unexpected celeb cameos from the likes of Julia Fox, Pete Davidson, and Ben Marshall.