New Transformers 4 promo art reveals Optimus Prime riding Grimlock

This (admittedly fuzzy) picture comes from an unknown trade show, where toy companies like Hasbro ignore movie spoilers in hopes of inspiring buyers to carry their merchandise. And what could be a more inspiring site than a sword-wielding Optimus Prime, leader of the Autobots, riding Grimlock in his dinosaur mode into… » 11/08/13 1:30pm 11/08/13 1:30pm