Travolta, Williams 'crashed wedding'

John Travolta has admitted that he and Robin Williams once crashed a wedding together.

The pair, who co-star in movie Old Dogs, were drinking in a Santa Barbara bar when they noticed the reception nearby.

Travolta told USA Today: "We were having fun, starting to relax, when we saw there was a wedding next door. We figured we'd crash it."

He continued: "They figured out who we were. Some guy yelled out, 'Hey, they really are Mork and Vinnie Barbarino!'"

Travolta's wife Kelly Preston and daughter Ella also star in the film.