One of Hollywood's funniest guys couldn't have a wedding without some humor. During Jimmy and Molly's ceremony in Ojai, Calif., it wasn't the late-night host's future wife who walked down the aisle first! It was Gabourey Sidibe, who made guests LOL when she headed towards the groom in a wedding dress and veil. But the fun didn't stop there. A-listers, like Ben Affleck, Jennifer Garner, Matt Damon, Jennifer Aniston, Justin Theroux, Kristen Bell, Dax Shepard, John Krasinski, Emily Blunt, Adam Corolla and more danced the night away alongside the pair's family and friends.