By Mike Cervantes, Hollywood Staff
If the Autobots are stuck in a major throwdown, Optimus Prime is going to need some backup. When the fate of the world is on the line, sometimes Bumblebee won't cut it as the second in command. Enter Grimlock.
Yes, the long-awaited leader of the Dinobots will finally make his film debut in Transformers: Age of Extinction, but his design will surely spark criticism from Transformers fans. (The trailer doesn't give much confidence for his role in this movie, either.) Let's compare the new dino against the classic Generation 1 robot.