Hugh's on records as saying he was most happy with his look in the last Wolverine film (the pic on the right) because they gave him 6 months prep time to get into shape which was longer than the other films. He also didn't drink anything for 36 hours prior to this shot to get that "tight" look. I'm not a Hugh Jackman stalker or anything, I read it on the IMDB Trivia page for The Wolverine 2013...
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Pffffssssshhhhaaaahahahahaha
[HEAVY BREATHING]