Making baby rumors together is not the only thing Jennifer Aniston, 45, wants to do with her fiancé Justin Theroux, 42. She also wants to make movies, Zoolander in particular.

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Theroux has reportedly been trying to write and direct a Zoolander sequel to star Ben Stiller as "blue steel" supermodel Derek. Now he's got a best Friend behind him, as he decides whether to reprise Zoolander as a sequel or a stage musical. And Aniston wants in.

"If a second Zoolander film gets made soon, Jennifer wants to be in it," a source told Radar Online on May 6.

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"But if a Zoolander musical gets off the ground instead, Jen wants to make money off of it. She's finally coming around to the idea of her and Justin teaming up on projects, because she was stubborn about it for a while, but it was actually the same situation when she was with former husband Brad [Pitt]. It took her a couple of years to see the good sense in collaborating with him, too."

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When the original Zoolander about clueless male models starring in an international plot came out 13 years ago, starring Stiller and Owen Wilson, it was a cult hit. Theroux even played a small role as an evil DJ in the film. In 2010, Theroux was announced to write and direct a proposed sequel. The project has stalled.

Stiller told ShortList Magazine last year, "Right now, it's on hold. There's a script we like, but....I want to make sure we do the sequel the right way."

Theroux has written screenplays for Robert Downey Jr.'s Iron Man 2 and Tom Cruise's Rock of Ages.

Aniston supports her man's next venture.

"Justin wants to write a proper Broadway show, and has been playing with some ideas, thanks to Jen's encouragement," said the source. "Justin's big future showbiz plans might involve Jen more than initially believed."

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