Sienna Miller has started the publicity rounds for G.I. Joe, which is probably going to be her “comeback role” after maybe breaking up with married man Balthazar Getty. Sienna is talking about how much fun she had working on G.I. Joe, and how great it was to play a villain. Which surprised me, because I didn’t know her character “The Baroness” was a villain. But when I was a kid, I was always a bigger fan of “She-Ra: Princess of Power” and “Gem and the Holograms” rather than G.I. Joe, so I learned something today. The Baroness is not a heroine. Good to know. Sienna also talks about how she loved playing with machine guns. Hmm… Sienna Miller with a machine gun. Wives, girlfriends and nannies beware.

SIENNA MILLER says she was freaked out by the fan interest in her character in action movie G.I. Joe – and was also at first terrified by the director Stephen Sommers.

Miller plays the gun-toting leather clad Baroness (pictured above). She said she’d previously been unaware of the G.I. Joe franchise – based on a line of action figures.

She said: “I thought it was all about this one guy called Joe who was a G.I.! But I loved the idea of being in a movie that was action-filled and fun and different to anything I’d done before.”

“I didn’t feel like a big villain until I got my machine gun. But then I thought: ‘Right, I can get into this!’”

She’s also discovered her character already has a fan base: “She’s an iconic character. I’ve been Googling her a lot and seen that a lot of people go to Halloween parties and ComicCon dressed as her. It’s terrifying, but being the first person to tackle her on screen is great.”

Asked if she enjoyed working with director Stephen Sommers, she said: “Have you met him? He’s like zoom, zoom! At first I was terrified but then you get him, you get his rhythm.”

“It’s about having fun. We’re not trying to win awards for acting. You go in and deliver what you’re supposed to and look cool while you are doing it.”

Miller said her skintight outfit with holsters and boots was “so different to how I normally look.”

She told this month’s Total Film magazine:”That helps when you’re creating a character – the more different you look, the more different you feel. I’ve got green contact lenses too, I don’t recognise myself.”

“[My character] used to be good but then a series of circumstances caused her to lose faith in life and in a lot of people she trusted. It’s been confusing at times but I think fundamentally she’s a villain, a femme fatale. She’s a pretty nasty piece of work.”

She added: “Rachel Nichols and I have one of the toughest girl fights I think people will ever see. I mean, it’s chains and it’s brutal, nasty, dirty fighting – proper boy fighting.”

Miller’s character is a spy and a baddie who is part of the evil Cobra organization. Nichols’ character is Shana O’Hara – codnename Scarlett – who is the intelligence expert for the G.I. Joe team.

[From The Coventry Telegraph]

If Sienna really gets the comeback some are predicting because of this movie, I will be shocked. The rumor going around a few months ago was that the producers were cutting Sienna’s scenes considerably, so it’s interesting to see her front and center promoting the movie.

Even though last week’s rumor was that Sienna and Josh Hartnett are now getting it on, I’m kind of wondering about Sienna and her G.I. Joe costar Channing Tatum. He’s given several interviews where he’s been talking her up, saying “She’s incredible. She looks incredible in the movie. She is incredible in the movie… She’s just the type of girl that when she … once you’re around her, you’re just happy. You can’t help but … she makes everybody happy around her. And, she just has that intoxifying thing over the room that she kind of comes in and commands it…” Mmm… intoxifying. Channing is just Sienna’s type – he already has a girlfriend, actress Jenna Dewan. So, let’s start the rumor, shall we?

Here’s Sienna arriving at LAX airport to depart on a BA international flight to London on April 15th. Images thanks to WENN.com .