While most celebrities struggle to stay lean, Hugh Jackman is busy packing on the pounds. The actor has been ordered by director Darren Aronofsky to bulk up for the new Wolverine movie.

"Right now, I’m at 210," he tells the L.A. Times of his current weight, which is the result of an intense diet and workout regime. "It’s 6,000 calories a day," he says. "It’s rough."

Jackman, 42, was closer to 190 pounds when he made 2009's "X-Men Origins: Wolverine," but Aronofsky insisted he add muscle for the latest film.

"Darren said with the last one, ‘Hey you looked great, but you’re so tall that in those long shots you looked kind of like Clint Eastwood, and that’s not Wolverine,'" explains Jackman. "He said that Wolverine, in the comics, is powerful, stocky, you know, he’s short and thick. So he said, ‘I want you to go there, get bigger.’"

Jackman adds that he is pumped about the upcoming "The Wolverine," which, as Marquee previously reported, is not a sequel but a stand-alone film. In it, the razor-clawed Marvel hero will go into battle to win the heart of a Japanese woman whose hand in marriage was already promised to another man.

"I feel like all the planets are finally aligned to make a great movie," says Jackman. "I think we’re going to make one that people will describe as the best of the bunch."