Tom Hardy Doesn't Just Play A Role — He Physically Becomes It, And These 6 Stories Prove It

For Bronson, He Basically Ate His Way Into A Different Body — On A Five-Week Deadline

To play real-life prisoner Charles Bronson, Hardy had almost no time to transform, so he force-fed himself into a bulkier frame with a diet that had nothing to do with looking good. He later admitted the toll it took on his body was brutal, and joked that by the time he was done his legs looked comically thin next to his newly massive upper body.

Warrior Nearly Broke Him — Literally

To play MMA fighter Tommy Conlon, Hardy underwent months of grueling training that included two hours each of boxing, kickboxing, jiu-jitsu, choreography, and weightlifting, seven days a week. He came away with a real MMA-fighter physique — and, by his own account, a broken rib, a broken foot, and torn hand ligaments in the process.

In Legend, He Played Both Kray Twins — And Then Fought Himself

Hardy played both Reggie and Ronnie Kray in the same film, pre-recording all his dialogue for one twin so he'd have something to react to while playing the other. He even brawled with himself onscreen using a stunt double and motion-control camera trickery, and legendary boxing coach Freddie Roach was so impressed by Hardy's training that he said the actor could genuinely step into a ring.

Bane's Voice Was So Muffled They Had To Re-Record The Entire Movie

After test audiences and trailer viewers complained they couldn't understand a word Bane said, Hardy re-recorded nearly all of his dialogue before The Dark Knight Rises hit theaters. Hardy explained the voice was inspired by Romany bare-knuckle boxer Bartley Gorman, since he didn't want to just default to a generic 'villain voice' for a character with Latin American comic-book roots.

The Accents Are Never The Same Twice — On Purpose

Hardy is famous for essentially never sounding like himself: compare Eames' posh Inception drawl to Bane's growl, Legend's East End Cockney, or Fury Road's accent that critics couldn't even place, somewhere between Australian and South African. He builds each voice by borrowing bits from real people he's encountered, which is part of why his accents so consistently divide audiences even as his performances get praised.

The Revenant And Fury Road Sets Got Real Tense, Real Fast

On the freezing, grueling Revenant shoot, Hardy said he'd break the heavy mood by wrestling director Alejandro Iñárritu into the snow just to release tension. Mad Max: Fury Road was rockier still — director George Miller later admitted Hardy's on-set unpredictability and lateness fueled real friction with Charlize Theron, saying there was simply "no excuse for it," even as the movie itself became a critical smash.