Discover the Untold Origins of Optimus Prime and Megatron in Transformers One Step into the world of Cybertron with the upcoming CG-animated film, Transformers One, as it unveils the untold origin story of two iconic characters – Optimus Prime and Megatron. Voiced by a stellar cast including Chris Hemsworth, Brian Tyree Henry, Scarlett Johansson, Keegan-Michael…