5 Celeb Co-Stars Who Became Couples Any chemistry you saw onscreen was apparently real By Evann Gastaldo, Newser Staff Posted Aug 9, 2014 8:00 AM CDT 2 comments Comments Dave Matthews, left, Adam Brody and Leighton Meester attend "The Oranges" screening hosted by the Cinema Society and The Hollywood Reporter on Friday, Sept. 14, 2012 in New York. (Photo by Charles Sykes/Invision/AP) (Newser) – Sparks flew on set for these Hollywood co-stars rounded up by Gossip Girl—in all 10 cases, they ended up together in real life. A sampling: Leighton Meester and Adam Brody: The stars of The OC and Gossip Girl met while filming The Oranges. They got married in February. Kristen Stewart and Robert Pattinson: The Twilight co-stars had a real-life romance that was just about as dramatic as their onscreen romance—Stewart cheated on Pattinson with her Snow White and the Huntsman director. Vanessa Hudgens and Zac Efron: They got together after playing a couple in High School Musical, but their relationship ended abruptly in 2010 after five years. Nina Dobrev and Ian Somerhalder: The Vampire Diaries co-stars dated for a while, but split last year. Even so, they're still co-stars, and they claim they're still friends, too. Emma Stone and Andrew Garfield: "Peter Parker" and "Gwen Stacy" got together on the set of The Amazing Spider-Man. Click for the complete list, including one couple who got together years after their co-starring days were over.