Preston "laughed" filming with Travolta

Kelly Preston has revealed that she had fun filming with husband John Travolta and friend Robin Williams.

The actress, who stars with the pair in film Old Dogs, said that they all laughed a lot during the making ot the movie.

Preston told USA Today: "The hardest part of being in a scene with any of these guys was not laughing and ruining every single take."

She continued: "And if you did laugh, the director just let us go with it, because they're going to be goofy and try to make you laugh."

Old Dogs is scheduled for release next year.