When you have a cast list that boasts Robert De Niro, Diane Keaton, Susan Sarandon, Topher Grace, Amanda Seyfried, Robin Williams, Katherine Heigl, Ben Barnes and more, you might reasonably expect something fairly funny and interesting. But then you remember that they’ve all got a dodgy movie or two on their collective CVs. So you'll have to make up your own mind about the trailer for The Big Wedding, which is online over at Apple.

A knockabout family comedy / drama / farce, the film finds Amanda Seyfried’s Missy O’Connor all set to marry Alenjandro Griffin (Ben Barnes), a Colombian adopted by Don (De Niro) and Ellie (Keaton) when he was young. But Don and Ellie have long been divorced, and Don now lives with Bebe McBride (Sarandon), Ellie’s former best friend (former for obvious reasons).

Then Alenjandro’s birth mother (Patricia Rae) arrives for the nuptials. Apparently because she thinks divorce is a huge sin, he’s been lying to her about Don and Ellie’s situation. Cue wacky madness as the once-happy ex-couple has to play-act being married; frustrated daughter Lyla (Heigl) lets out her frustrations and Robin Williams plays a priest. Considering the last time he did that we got Licence To Wed, that may or may not be a good thing.

Still, we’ll leave judgement to when the movie arrives on November 9.