WATCH: Everyone Stars In ‘Big Wedding’

"The Big Wedding" trailer; or, the unofficial sequel to "New Year's Eve."

In the mold of Garry Marshall's recent output ("Valentine's Day" and the aforementioned ball-dropping bomb) comes "The Big Wedding," a romcom that stars Diane Keaton, Robert De Niro, Susan Sarandon, Amanda Seyfried, Topher Grace, Robin Williams and Katherine Heigl. (Apparently, Josh Duhamel was busy that day.)

Directed by Justin Zackham, "The Big Wedding" tells a tale as old as recent movies: A divorced couple (Keaton and De Niro) must pretend to be together so that the Columbian mother of their daughter's husband-to-be doesn't freak out. (She's very Catholic.) Hijinks ensue -- Williams plays a priest, presumably because someone saw "License to Wed" -- while heart-to-hearts happen with high frequency.

"The Big Wedding" is due out in theaters on Oct. 26, just in time for you to start worrying about your own family gatherings around Thanksgiving. Watch the trailer above; head over to Apple to check it out in HD.

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