Elba excited about 'Thor' follow-up

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.