New 'Assassin's Creed' Movie Trailer: Journey Through Time With Michael Fassbender

It's been almost nine years since the first Assassin's Creed dropped, becoming an instant gamer-fave. On Dec. 21, its movie adaptation will finally hit theaters. Today's new trailer gives us more insight into how this whole "Michael Fassbender travels back 500 years to the Spanish Inquisition to become one with his deadly ancestor" mechanism works.

But mostly it's just got a lot of sick fighting and reckless jumps off very high things.