'Thor: Ragnarok' Teaser Trailer Previews a Friendly Battle With the Hulk

Taika Waititi directs the Marvel movie with new additions Cate Blanchett, Jeff Goldblum and Tessa Thompson.

Marvel has released the first teaser trailer for Thor: Ragnarok, and it puts a smile on Chris Hemsworth's face.

After walking into a gladiator ring with his opponent revealed to be the Hulk, Thor reacts with a joyful shout: "We know each other! He's a friend from work!"

The clip also previews the characters of franchise newcomers Cate Blanchett, Jeff Goldblum and Tessa Thompson.

Hemsworth is back as the God of Thunder in the third Thor film with Tom Hiddleston, Idris Elba and Anthony Hopkins, plus fellow Avengers played by Mark Ruffalo and Benedict Cumberbatch.

Taika Waititi directs the movie, which hits theaters Nov. 3. Check out the trailer, and the new poster: