Haley and Roberto are getting married. Their perfect Roman wedding has one important variable: the table full of English friends. Among them sit Haley’s brother Jack (Sam Claflin), Jack’s ex-girlfriend Amanda (Freida Pinto), Amanda’s insecure current boyfriend Chaz (Allan Mustafa), “maid” of honour Bryan (Joel Fry), the world’s most boring man Sydney (Tim Key), Dina (Olivia Munn), the journalist with whom Jack had a brief encounter but enduring infatuation several years ago, Rebecca (Aisling Bea), the saucy guest who’ll keep oversharing, and of course Marc, the very much uninvited guest who could derail it all.

The beautiful bride Haley implores darling brother Jack to do her a solid: save her wedding day by dosing coked up ex-boyfriend Marc with just a little bit of sleeping tonic. Harmless. Except that little bit of sleeping drought is in the bottom of a glass on a table where the seating cards have all been mixed up. There’s a 1 in 8 chance any of the above people is about to take a non-consensual nap.

It’s not quite Groundhog Day, but we do get to see several alternatives depending on who gets dosed. Sometimes things go hilariously wrong and sometimes they go sadly wrong and sometimes just resoundingly wrong.

I’ve never been the biggest fan of Sam Claflin but he doesn’t detract much from the movie, so I’ll give him that. I just think if you can get someone with a personality, why hire this cardboard cutout? He’s overpowered by literally every other guest at the wedding and he’s supposed to be our protagonist. Thankfully Key and Bea do a lot of the heavy lifting, lending levity to the film and a much needed spark of life.

Director Dean Craig takes a tired concept (revisited often by Netflix offerings) and has little to contribute. His butt is saved by a couple of stand-out performances in a movie otherwise as bland as the banquet chicken I’m sure they served.