Jennifer Lopez wowed onlookers as she stepped out of a church in New Jersey dressed in a lavish gown and gave her beau Ben Affleck a big kiss. But anybody outside St. John’s church in Paulsboro who witnessed the joyous occasion, was quick to learn that it wasn’t real life – just a scene from their new movie Jersey Girl. Lopez, 32, and 30-year-old Affleck, who made their romance public earlier this summer, star in the new drama together which is about the effect of a new wife on the life of a PR man in the music business. And sources on the set of film say that after director Kevin Smith yelled “Cut!” the Hollywood couple remained in deep liplocked passion, with J.Lo crawling into her lover’s lap to watch the playback. An eyewitness says, “They looked all lovey-dovey. She couldn’t keep her hands off him.”