(Cover) - EN Showbiz - Hugh Jackman is feeling "so pumped" on the first day of shooting the new Wolverine film.

The Australian actor is reprising his role as the Marvel comic superhero for upcoming instalment The Wolverine.

Hugh took to his Twitter page to express his excitement on his first day on set.

"we're on day 1 of shooting..wolverine is backfeel so pumped about this onenever felt so ready!!!! will keep y'all posted!!! (sic)," he shared on the social networking site.

Hugh is famed for his muscular physique and trains hard to bulk up to portray the mutant with enhanced physical capabilities.

The 43-year-old star shared his new diet on his Twitter page - posting a picture of green beans and plain cooked chicken.

"and you know what that means.... the wolverine diet!! this was meal 2 at 9am this morning (sic)," he wrote as the accompanying caption.

Hugh is on a mission to look even bigger than he did in 2009's X-Men Origins: Wolverine this time round. He has been eating 6,000 calories a day after he was asked to bulk up for the role. (C) Cover Media