Watch: Here's the new Thor - Ragnarok trailer!

Los Angeles: A new trailer of 'Thor: Raganok' was revealed at Comic-Con alongside a new poster, featuring its lead stars Chris Hemsworth, Cate Blanchett, Tom Hiddleston and Mark Ruffalo.

Director Taika Waititi, Hemsworth and the rest of the cast unveiled the 2 minutes and 35 seconds trailer on Saturday which features Thor (Hemsworth) and Hulk (Ruffalo) battling each other before becoming friends again.

Thor, the hammer -wielding Asgardian God, is also seen putting together a supergroup of him, Hulk, Loki (Hiddleston) and Valkyrie (Tessa Thompson), to take on the villainess Hela played by Blanchett.

During the Marvel panel, Hemsworth spoke about the third 'Thor' film, reported E! online. "If we're going to make a third film we really have to push the envelope and experiment take it to another level so that is what this film was. Cut his hair, break his hammer, change his clothes, change the world. I think that's what you're going to see and be excited about," said the star.

The first teaser trailer for 'Thor: Ragnarok' was released in April.