The Big Wedding is a 2013 American comedy film written and directed by Justin Zackham. It is an American remake of the original 2006 Swiss/French film Mon frère se marie (My Brother is Getting Married), written by Jean-Stéphane Bron and Karine Sudan.The film stars a large ensemble cast including Robert De Niro, Katherine Heigl, Diane Keaton, Amanda Seyfried, Topher Grace, Ben Barnes, Susan Sarandon, and Robin Williams.