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British actress Sienna Miller admits she enjoyed stripping for the movie "Hippie Hippie Shake", although she was embarrassed after her pictures appeared online.

Miller also said it wasn't as traumatic as she thought it would be.

"There were eight of us and we were playing hippies and it was the summer of love.

We take our clothes off, eight boys and girls, and go for a swim. We were nervous but it's real camaraderie when you're all together.

It's actually hilarious getting naked in front of people you love and respect," dailysnack.com quoted Miller as saying.

The movie is a psychedelic journey through London in the sixties and early seventies focusing on the love between the character played by Miller and the one played by actor Cillian Murphy.

She added: "The water was freezing cold, so the boys weren't too happy. The water was about seven degrees, it was colder than anything I've experienced in my life.

But as a result it was quite funny and we felt a big sense of achievement after doing it."