Mr Skin - Official Site Mr Skin - Official Site

Stars often go through a lot to embody a role. Jared Leto got portly to portray John Lennon killer Mark David Chapman for Chapter 27, Nicole Kidman donned a fake nose for The Hours, and Charlize Theron took on the seemingly impossible task of disguising her mindbending beauty for Monster.

But when it comes to playing a swinging '60s hippie onscreen, Sienna Miller draws the line at slacking on her pubic-hair grooming regimen!

Sienna goes full frontal in a scene for the upcoming Hippie Hippie Shake, and when the highers-up began to edit it, they discovered that Sienna's Brazilian bikini wax was a distracting anachronism in a movie about the wild and very, very woolly 1960s. A source told The Daily Mirror:

"The film is set in the swinging 60s when fashion was wild and body hair even wilder. Unfortunately, Brazilian waxes weren't common in the 60s and Sienna's part involved one or two nude scenes - meaning that her grooming habits were on display. A merkin simply wouldn't have done the trick, but luckily computer wizardry came to the rescue.

"Sienna's private parts were enhanced, giving her a rather unruly bush. All the cast had a good giggle about it and stoical Sienna happily played along."

Technology is such an amazing thing. It can create realistic battle scenes in space movies, a talking Stuart Little, and now, a fantastically fluffy muff. Who would have thought Sienna Miller's vagina would have something in common with Jar Jar Binks?

Prior to CGI wizardry, actresses sometimes gamely donned poofy pubic merkins onscreen. In Blow Dry, supermodel Heidi Klum sported a faux furburger in the shape of a puffy pink heart. And in the recent remake of The Heartbreak Kid, ubiquitous blonde cutie Malin Ackerman wigged out with a dense afro of phony pubeage that was accessorized by a silver pretend piercing.

So what if it's a merkin? You'll still be jerkin'!