He was the bachelor who went MIA and almost missed his own wedding in The Hangover flicks, but fortunately Justin Bartha did make it to his own ceremony on time.

On Saturday, Bartha and his Pilates instructor girlfriend, Lia Smith, said "I do" at the Kualoa Ranch in the bride's home state of Hawaii.

The ceremony was a star-studded event.

Reese Witherspoon and her husband, Jim Toth, who is the groom's agent, were there.