In the midst of all the casting speculation for the big-budget version of Hasbro's G.I. Joe, I don't quite think fans expected to hear this name pop up first. Variety reports that Sienna Miller has officially become first actor to sign for the Stephen Sommers (The Mummy) film. Nothing has been simple with this film; starting back in June when it was reported that Paramount had ordered two different scripts for the film, only to do away with one entirely and then hire a brand new script writer. According to Variety, the story will center on, "Brussels-based GI OE, an acronym for the Global Integrated Joint Operating Entity, and revolves around an international co-ed force of operatives who use high-tech equipment to battle Cobra, an evil org headed by a Scottish arms dealer".

So how might Miller fit into the story, you may ask? According to Variety, she will play "raven-haired baroness and sexy femme fatale skilled in espionage" -- which is probably a compendium of some of Joe's more famous leading ladies. But considering Miller's history as a model, you think they would have made her Cover Girl.

Most of the casting is still up in the air for the film, despite some of the goofy rumors floating around; at one time or another Mark Wahlberg, George Clooney, and Jason Statham were all attached to the project. But, Miller gets the distinction of being the first actor to officially sign on to a big-screen version of a toy commercial. Paramount hopes to begin shooting this February. G.I. Joe is set for release on August 7th, 2009.