Hugh Jackman is living every man's dream: He's pretty much eating day and night. The actor, 42, is putting away 6,000 calories a day to gain weight for the next installment of "Wolverine."
"Right now, I'm at 210 [pounds]," Jackman said. "I was at 190..and ["Wolverine" director Darren Aronofsky] 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.'"
So he's taking that advice to heart for this film.
"[Aronofsky] 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 said. "It's 6,000 calories a day, it's rough."
Jackman isn't the first - or the last - actor to go to body extremes for a movie role.
South African-born Charlize Theron is one gorgeous woman - but all of that beauty vanished when she played executed serial killer Aileen Wuornos in the 2003 film "Monster." Theron gained 25-30 lbs. for the role, shaved her eyebrows and wore prosthetic teeth in order to turn her into Wuornos. She received the 2004 Best Actress Oscar for her trouble.
"I was so concerned early on in the process with the physical aspect of it, because in diving into the emotional aspect of it so much. I was so concerned about wanting to stay so true to Aileen, every decision that we made, we never forgot Aileen," she said after the movie's release.
What can we say about Christian Bale? He's known for rapidly going from one extreme to the other for film roles - and his willingness to transform is legendary.
Bale first lost 70 lbs. for his role as an insomniac in 2004's "The Machinist." His gaunt appearance was shocking - but more shocking was how he immediately bulked up for his role in "Batman Returns." He reportedly gained 100 lbs. for the role and went from waif to buff.
He did is again in 2010 for his role as crack-addicted boxer Dicky Eklund in "The Fighter." He lost 60 lbs.
"I have no goal of seeing if I can become invisible one day, eat so little that I disappear," Bale joked to MTV News. "I didn't take this job because I went, 'Oh, there's a physical transformation needed.' I always go, 'Damn! There's a physical transformation needed!'"
"Again, I just didn't recognize that. I just liked the character and then realized, 'Oh, crap, he's a welterweight.'"
Natalie Portman and Mila Kunis
Brunette beauties Mila Kunis and Natalie Portman both dropped 20 lbs. off their already-thin frames to play ballet dancers in Aronofsky's Oscar-nominated film "The Swan."
"It was the most intense training I've ever had in my life, and probably will have for anything. I lost 20 pounds, so I went down to 95 pounds," Kunis told Nylon magazine in 2010. "I weigh 117 usually, like today. I looked like Gollum [from 'The Lord of the Rings']."
"I could see why this industry is so f****d up, because ... I would literally look at myself in the mirror and I was like, 'Oh my God!' I had no shape, no boobs, no ass ... all you saw was the bone. I was like, 'This looks gross,'" Kunis said. "It took me five months to lose 20 pounds, but it took me just five days -- days! -- to gain it all back."
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