This long-awaited origin story of how the most iconic characters in the TRANSFORMERS universe, Orion Pax and D-16, went from brothers-in-arms to become sworn enemies, Optimus Prime and Megatron, debuted its trailer on Friday April 19. The launch kicked off at 11:00pm AEST, Thursday April 18, with a live-streamed countdown showing the journey into space. After one hour, the craft reached its peak at 125,000 feet above the Earth, revealing the trailer with a custom introduction video from our stars: Chris Hemsworth and Brian Tyree Henry.