Tom Hiddleston originally auditioned for the role of Thor.
Hiddleston is best known for his terrific performances as Loki in Thor, Avengers Assemble and Thor: The Dark World, but that is not the role that he was looking to land.
The actor admits that he worked hard to get into shape for the role.
Speaking to Chelsea Handler on her US chat show the actor said: "I did less running and more lifting of things for a while. Some would say [it was] insane.
"But it was really fun, actually. And I've never done anything like that before.
"I basically went from 180 pounds to 198 pounds and I had something like seven percent body fat."
And while Hiddleston's campaign to land the role of Thor was not successful, he was asked back to take on the part of Loki.
Since Thor hit the big screen back in 2011, Loki has become one of the most popular Marvel characters.
He is back on the big screen in Thor: The Dark World; a movie that has already been dominating the global box office.
The film will be released in U.S. cinemas this week.
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