I saw the movie The Big Wedding. It stars Diane Keaton (Father of the Bride), Susan Sarandon (Step Mom), Katherine Heigl (Roswell), Topher Grace (That 70s Show), Amanda Seyfried (Mean Girls), Robin Williams (Flubber), and Ben Barnes (The Chronicles of Narnia: Prince Caspian).
A long-divorced couple fakes being married as their family unites for a wedding.
I give this movie 3/5 stars.
Funny, but don't recommend this for kids.
A really awesome cast.