Moulin Rouge! star EWAN McGREGOR sparked chaos on the set of Jay Leno's chat show on Thursday night (10MAR05), when he had a water fight and wrestling match with the comedian.

McGregor re-enacted a scene from his and Leno's new animated movie ROBOTS, when he made a plastic dog urinate over the funnyman's fire hydrant character via a mini water pistol.

An unamused Leno fought back by throwing a cup of water at McGregor, prompting the Scottish actor to return the attack and then run after his interviewer to the edge of the studio's stage, where the pair wrestled on the ground.

Once the battle was over, a ruffled Leno said, "(That's) what happens when things get out of hand."

12/03/2005 02:56