During the shooting of Happy Ending`, the entire was in for surprised and quite amused when the film`s lead actor Saif Ali Khan chose to change his costumes in front of everyone!

It so happened that the team had always been travelling to various locations while shooting in California within a limited time schedule. So in order to save time by frequently visiting his vanity van, Saif decided to change on the shooting spot itself. To make the process funnier, the actor sometimes used to pose with his pants down.

In fact while it amused everyone at first, Saif`s changing antics happened so many times that it became a regular thing during in-between shots. In fact, the director Raj Nidimoru once took the opportunity to click Saif in "pantless" avatar.

Well, we already had enjoyed Saif's funny jigs in 'Cocktail' in one of its songs, where the actor had been caught dancing on bed with his pants down and doing a "bum" dance.

Watch 'Happy Ending' Trailer