When these stars became the life of the wedding party, it changed their lives. Jennifer Lopez showed us her romantic side for the first time when she fell for Matthew McConaughey in "The Wedding Planner." Isla Fisher was a long shot when she got a part in "Wedding Crashers," but it made her a star. And Rupert Everett turned three lines into a career-making performance when he stole the show in "My Best Friend's Wedding."
—Jason Lewis