He received an Academy Award nomination for his performance in Danny Boyle's biopic Steve Jobs earlier this year so it's surprising to learn that when he was gearing up to shoot the movie, Michael Fassbender had serious doubts as to whether he could play the titular entrepreneur at all. His reason?

Aaron Sorkin's script was "so dense", he didn't think he could handle it.

Talking to Vulture at Toronto International Film Festival, the 39-year-old candidly admitted: "It was such a mountain, and I'm a slow learner, so when the script arrived for me and the opportunity came to play the part, I really thought: 'This is not me. This should be somebody else. It's a miscast scenario.'"

Fassbender even went on to explain that he believed he was so wrong for the job that he joked with a driver of his that he should injure him so that he wouldn't have to take part in filming. "In rehearsals I was trying to find a way to get out of the job," he recalled. "I remember [saying]: 'If I put my arm in the door, you should slam it. It should cause a break and it should get me out of this gig.'"

With the acclaim he received for his work on the film, it's likely that Fassbender has convinced himself otherwise by now but during the interview, he touched upon one performance he still isn't happy with. A scene in 2014's X-Men: Days Of Future Past which sees his character Magneto argue with James McAvoy's Professor X about their loyalties to fellow mutants aboard the latter's private jet.

"I don't actually like that performance there, to be honest," Fassbender said. "I just think it's me shouting. It's just like... some dude shouting."

Days Of Future Past was widely praised – largely for the high calibre of acting talent director Bryan Singer threw into the mix – so it's hard to see what that particular sequence still "haunts" Fassbender. It's a pretty emotional one which weighted the X-Men universe in something much more real than "flexing your superpower"territory and it certainly went down well with audiences.

In that case, let's just hope Fassbender's a little happier with his next roles! He can currently be seen in US cinemas in romance drama The Light Between Oceans opposite Rachel Weisz and his real-life girlfriend Alicia Vikander. After that, he'll take to the big screen as the lead in video-game adaptation Assassin's Creed.

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