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The upcoming Disney-owned "Star Wars" movie will star a much older Princess Leia ... at least if Carrie Fisher gets her way -- because the actress tells TMZ, she'd love to star in the next installment.

Carrie was at LAX yesterday when we asked if she'd accept a role in "Episode 7" -- currently in development at Disney -- and she said, "Yes. Sure. Wouldn't you?"

It would make sense too -- because "Episode 7" would follow "Return of the Jedi" in the Stars Wars timeline, meaning Leia could conceivably be a lot older in the new movie.