Romance rumors began to swirl this summer when Jennifer Aniston and Gerard Butler started meeting. Turns out Jen was interested in…Gerard’s acting!

Jen, 39, has nabbed the 300 star, 39, for a role in The Goree Girls, a woman’s prison saga she’s set to produce and star in next year. “The thing that really blew her away was P.S. I Love You,” a Jen insider tells Life & Style. “Gerard’s performance made her laugh and cry.”

Should Jen’s on-again boyfriend, John Mayer, be worried about the Scottish hottie? “She’ll get a kick out of having romantic scenes with Gerard,” the insider says. “But she wants to go home at the end of the day with someone like John.”

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