“Destruction of the old and the re-building of the new.” If you ever wondered why “Thor: Ragnarok” looks so different than the original “Thor” and “Thor: The Dark World,” director Taika Waititi took the approach and idea of Ragnorok to the movie itself. Watch the new behind-the-scenes video above:

After the events of Avengers: Age of Ultron, and four years after the events of Thor: The Dark World, Thor, held captive on the planet Sakaar without his hammer, must win a gladiatorial duel against an old friend—the Hulk—in order to return to Asgard in time to stop the villainous Hela and the impending Ragnarök, the doom of the Asgardian civilization.

The new Thor movie from Marvel Studios and Disney stars Chris Hemsworth, Tom Hiddleston, Cate Blanchett, Idris Elba, Jeff Goldblum, Tessa Thompson, Karl Urban, Mark Ruffalo, and Anthony Hopkins as Odin.

“Thor: Ragnarok” hits theaters everywhere on November 3.