Actor Gerard Butler has sparked rumours of a new romance after he was photographed kissing a mystery woman in California.

The Olympus Has Fallen star was snapped paddle boarding in Malibu on Thursday (25Sep14) with the same brunette he has been spotted with since July (14), according to

The female's identity has yet to be revealed.

Butler was previously linked to Romanian model Madalina Ghenea, who he split from last year (13).