Director: Aniston, Butler 'flirt on set'

Jennifer Aniston and Gerard Butler reportedly spent most of their time on the set of their latest film "flirting".

Andy Tennant, who directed the two actors in Bounty Hunter, said that they had great chemistry and "had a good time" during filming.

Tennant told Us Magazine: "When you have that chemistry [between actors] you're like 'Thank God!' because they're having fun on day 45 and day 65 and they're still flirting.

"Gerry likes to have fun, Jen likes to have fun, they don't take themselves seriously - which is a big mistake people assume with Jennifer, but she's a riot! So we went out [during filming] and had a good time."

Aniston recently said that the media always romantically links her with Butler because "he starts those rumours! It's his fault!"

She also described him as "funny and handsome", while Butler admitted that they "have a natural chemistry".