Doctor Who star Karen Gillan has made a bold bald move for the Guardians of the Galaxy movie not only by taking on the role of the female lead villain Nebula, but also by shaving her long beautiful hair for the character.

The former Doctor Who star revealed some juicy information about the movie, and it involves some girl-on-girl combat action with none other than "Star Trek" movie star Zoe Saldana.

"Nebula is the female villain and Lee Pace plays the male villain," she told E! Online's Marc Malkin while promoting her new horror film, Oculus, at SXSW. "We torment people. We're really mean to people."

"There's a big girlie fight sequence, but it's not that girlie," the actress told MTV during the same event. "They made sure there weren't any nice pirouettes or anything like that."

The bald Nebula versus the green-skinned Gamora, played by Zoe Saldana, who's being described as "the green-skinned humanoid who is the last of a species that was exterminated by a race known as the Badoon. She also happens to be a skilled assassin."

See Guardians of the Galaxy trailer here:

This will not be the first time for the 35-year-old actress to paint her skin for a role, unlike Gillan, Saldana played the blue creature Neytiri in the hit sci-fi flick Avatar way back in 2009.

"We're very angry towards each other," Gillan added. "There's a huge fight sequence. I had to train for two months before I could do it. We shot the thing for four days!"

The former Doctor Who star Karen Gillan was so much into her role that she did all of her stunts for the Guardians of the Galaxy movie, and commends her co-star Zoe Saldana for being physically ready for th film saying:

"She's really experienced in the physical stuff, she was a ballerina," Gillan admitted. "She's really amazing at all of that stuff. She barely required any rehearsal. She was like, 'I can do this.' I required two months of rehearsals every day that I wasn't shooting because I looked like spaghetti when I started."

"I did all of my stunts and a stunt double did them, too," Gillan revealed. "I refused knee pads at one point and of course then I bruised my knee but that was it."

Talk about the sacrifices she had to make for the film, not only did she shave her red long locks the Scottish beauty had to endure sitting in the makeup chair for five hours every time she's in shoot, while the makeup team applied prosthetics to transform her skin into blue.

"It was amazing," Gillan said of the first time she looked in a mirror as Nebula. "It was creepy and weirdly doll-like, child-like almost."

Guardians of the Galaxy trailer has been released last month and was classified with a PG rating and a two minute and thirty-two second running time.

 Here is the official synopsis of the film as posted from Marvel.com:

"From Marvel, the studio that brought you the global blockbuster franchises of Iron Man, Thor, Captain America and The Avengers, comes a new team--the Guardians of the Galaxy. An action-packed, epic space adventure, Marvel's "Guardians of the Galaxy" expands the Marvel Cinematic Universe into the cosmos, where brash adventurer Peter Quill finds himself the object of an unrelenting bounty hunt after stealing a mysterious orb coveted by Ronan, a powerful villain with ambitions that threaten the entire universe. To evade the ever-persistent Ronan, Quill is forced into an uneasy truce with a quartet of disparate misfits--Rocket, a gun-toting raccoon; Groot, a tree-like humanoid; the deadly and enigmatic Gamora; and the revenge-driven Drax the Destroyer. But when Quill discovers the true power of the orb and the menace it poses to the cosmos, he must do his best to rally his ragtag rivals for a last, desperate stand--with the galaxy's fate in the balance."

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