"X-Men: The Last Stand" beauty
Famke Janssen saw co-star Sir Ian McKellen naked.
The actress stumbled across the British star in his birthday suit but insists she wasn't embarrassed because she grew up on nudist beaches.
She said, "Somebody told me about this beach I should go check out, so I went with a friend. It happens to be a nude beach and the first person I bump into is Sir Ian, flopping in the wind. It's not that strange for me. My family, they're a little weird - they go to nude camps a lot."
Famke also revealed that her family would play tennis, go bowling and even do yoga in the nude.
Meanwhile the brunette actress - who plays mutant Dr. Jean Grey in the comic-book franchise - is reportedly set to launch a fashion range for dogs.
The star is apparently so devoted to her pooch, Liquorice, she makes him special outfits and a pet firm is now keen to market her designs.