Although the “Transformers” franchise is a forty-year classic, for decades we hadn’t seen the origin story behind the two biggest rivals – Megatron and Optimus Prime. That is, until now. “Transformers One” follows the story of a pair of best friends turned foes.

From what we know about Transformers One, this prequel will show how Chris Hemsworth’s Orion Pax and Brian Tyree Henry’s D-16 go from being brothers to the archenemies we’ve come to know as Optimus Prime and Megatron.

The stars came out for the New York premiere of 'Transformers One' — from Chris Hemsworth to Keegan-Michael Key to Brian Tyree Henry. See all the photos below!