He's shaved his head in order to play Al Capone in upcoming biopic, Chasing Fonzo.
Yet Tom Hardy revealed the transformation hasn't stopped there as he shared snaps of his incredible make-over behind the scenes of the film.
Taking to Instagram on Wednesday after what must have been hours in the hair and make-up department, the 40-year-old actor snapped selfies dressed as the American mobster.
Tom looked virtually unrecognizable in the images, with a scraggly wig on and prosthetics to alter his appearance.
© Provided by Associated Newspapers Limited Usual style: For the project, Tom had to once again alter his appearance, however, he claimed it wouldn't be as drastic as his muscular roles He captioned one shot: 'Mega awkward character misstep', before posing with the people behind his transformation and lauding: 'Audrey and Jay Make up legends'.
Once the most feared gangster in America, the Josh Trunk movie will follow Al Capone at the age of 47, as he battles dementia.
According to production notes, the story will show how 'his past becomes present as harrowing memories of his violent and brutal origins melt into his waking life'.
The Dark Knight Rises star, who beefed up considerably to play Bane in the Batman film and MMA fight Tommy Conlon in Warrior, previously spoke about his fears for his health now that he's 40.
© Provided by Associated Newspapers Limited Look familiar? Taking to Instagram on Wednesday after what must have been hours in make-up department, the 40-year-old actor snapped selfies dressed as Al… For the project, Tom had to once again alter his appearance, however, he claimed it wouldn't be as drastic as his muscular roles.
The Taboo star previously told the Daily Beast: 'It's not the classic Al Capone that you necessarily envision with the silhouette. I don't want to give too much away about it, but there's definitely a transformation with that role.
'I don't know if it's as drastic as Bane. I've probably damaged my body too much. I'm only little!
'If I keep putting on weight I'll collapse like a house of cards under too much pressure.'
The star added that he has aches and pains in places that he shouldn't and admitted he now struggles lifting his children Louis, nine, and the two-year-old he shares with wife Charlotte Riley.
According to iMDB, the Academy Award nominee was once slated to play the role of Capone in a David Yates-directed movie called Cicero, but the film never materialized.
Whilst Tom is currently busy playing Capone, he recently teased fans he was set to step into Daniel Craig's role of James Bond.
Wading in on an April Fools' joke that Daniel had sensationally had pulled out of the next 007 movie, the actor told his followers he was already in his 'tux and on the runway.'
Sharing a snap of an article saying the Batman star was cast to replace Daniel, he wrote: 'Dam--- I was in my tux and on the runway Gtg no drama GB RTB headed back to NOLA stood down 19.'
The Taboo star has made no secret about wanting to be the next 007 - but has previously refused to talk about the part in fear it will get him blacklisted.
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