US-ENTERTAINMENT-PROMISE-PREMIEREHe's at it again! Christian Bale's body may want a break from all of the weight fluctuating for various roles, but an artist is an artist.

Bale famously lost 70 pounds for "The Machinist," and also lost weight to play a heroin addict in "The Fighter," which earned him an Oscar. He packed on 30 pounds of muscle weight as Batman, and gained enough weight to earn a pot belly for "American Hustle." Now he's back on the larger end of the spectrum for "Backseat." In the film, Bale will play former Vice President Dick Cheney. He'll also reunite with his "The Fighter" and "American Hustle" co-star Amy Adams, who'll play his wife Lynne Cheney. Sam Rockwell plays former President George W. Bush, with Steve Carell as Donald Rumsfeld, and Bill Pullman as Nelson Rockefeller.

"Backseat" is scheduled to begin filming this month. Bale, 43, showed off his new dyed eyebrows and heavier frame at the Telluride Film Festival, where he was premiering another movie, "Hostiles."

Here's a photo from "Hostiles," showing Bale's very thin physique, contrasted to his Cheney look for "Backseat":

"Backseat"' is being written and directed by Adam McKay, who worked with Bale on "The Big Short." The focus will be on Cheney. "I've always found Cheney fascinating," McKay told Deadline. "Questions of what drove him, what his beliefs were. But once we started digging, I was astounded at how much he had shaped modern America's place in the world and how shocking the methods were by which he gained his power."

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