In the newest trailer for Transformers: Age of Extinction, Optimus Prime rides into battle on a Dinobot. The brainstorming session for this sequel was Michael Bay in a boardroom with five other execs filming themselves playing with Transformers action figures.
“Hey, wouldn’t it be cool of Prime freaking rode a Grimlock?”
“Yea, and make it breathe fire too! High five! Now let’s do some coke!”