What would the Marvel Cinematic Universe be like if Chris Hemsworth has never been cast as Thor? Apparently, that scenario isn't as far-fetched as it sounds, as the actor reveals he very nearly passed on the role.

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While speaking with the Sydney Morning Herald ahead of the release of Thor: Ragnarok, Hemsworth explained that he and his representatives were hesitant about the time commitment required by Marvel Studios' multi-picture deal.

"I was crossing the road in Vancouver ... and I remember the exact moment getting a call from from my lawyer and my manager saying 'you got the offer'," he recalled. "And then kind of going 'Oh, wow, cool. So what is it?' 'It's a superhero thing and it's a six-picture deal.' And we were like, 'That's a lot of films to sign up for. We should pass on this.'"

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He added that his initial worries over the role came from "that voice inside you thinking it's too good to be true."

"When we shot the first film, I was aware of what it was but had no idea if anyone was going to turn up and see it," Hemsworth said, "let alone then do The Avengers or then do a second Thor or a third Thor or a third, fourth, and fifth Avengers."

Debuting Nov. 3, director Taika Waititi's Thor: Ragnarok stars Chris Hemsworth, Tom Hiddleston, Tessa Thompson, Jeff Goldblum, Mark Ruffalo, Cate Blanchett and Karl Urban.