Ashton Kutcher and Katherine Heigl’s ‘Killer’ Time in France

Uh-oh; does Demi Moore know about this?

Demi’s beau Ashton Kutcher and Grey’s Anatomy actress—for now, anywayKatherine Heigl were spotted in the south of France on Thursday, getting awfully cozy with each other.

Ms. Moore better Twitter her hubby to behave himself, stat!

Actually, Kutcher and Heigl were just filming a scene from their upcoming film, Five Killers, about a pair of newlyweds who find out that their neighbors might be assassins hired to kill them.

Good thing, too; if Ashton really was caught fooling around, he might find out that hired assassins are the least of his problems.