Idris Elba has vowed Thor 2 will be "huge."

The British actor is set to reprise his role as Asgardian gatekeeper, Heimdall in the sequel - which will again see Chris Hemsworth portray the title character - and though he says it will be an epic adventure, he also revealed the story will examine the characters in detail.

"Definitely Heimdall's more involved, but also, what's more involved is who the Asgardians are. I think we'll see a sense of that. It's a huge film, Thor 2, but I also think it's micro in a way that you start to look at people, who they are a little bit more," he said.

Though production on the sequel - which is expected to explore the other realms of the universe, outside of Asgard and Earth - has not yet begun, Idris can't wait to get to work on the movie: "I'm actually excited about it. I literally just did a costume fitting the other day."

Idris' co-star Tom Hiddleston recently discussed his hopes for the movie sequel, saying he wanted his character Loki to reach rock bottom: "I'd like to take [Loki] to his absolute rock bottom. I'd like to see him yield, essentially, to his darkest instincts. Then, having hit rock bottom, maybe come back up."