Director Darren Aronofsky told him that while he looked good in the first film, his height makes him appear too thin at times, meaning that he has been ordered to work on growing outwards.
The 42-year-old Aussie actor told the Los Angeles Times, 'I don't know how much I want to give away about it, but Darren said with the last one (film), '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...' (I have to be) powerful, stocky... short and thick.'
He added that he is aiming for a Mike Tyson-style physique. 'I always think of Mike Tyson when he first came on the scene. Sometimes, he was a full foot shorter than his opponents... but there's real power.'