Bradley Cooper and Zoe Saldana were caught in a lip-lock on the set of The Words in Montreal on Tuesday. He's coming off the success of The Hangover Part II, which has already grossed more than $200 million worldwide, and she recently returned from a fashionable stay in Cannes, France. On screen, Bradley's making out with Zoe, but off the clock he's been linked to costar Olivia Wilde. Olivia and Bradley were spotted together last month at Justin Timberlake's SNL afterparty and again more recently on the West Coast though her rep maintains that Olivia Wilde is single and not dating Mr. Cooper. Olivia Wilde wasn't around for Bradley and Zoe's loved-up scenes, but she was cozied up to another good-looking guy earlier this week to celebrate Ryan Reynolds's Details magazine cover. Zoe has her own real life love to tend to, since she's engaged to actor Keith Britton.