Second ‘Transformers Age of Extinction’ Trailer Has Optimus Prime Vs. Grimlock Published March 4, 2014 at 850 × 355 in First Full-Length ‘Transformers: Age of Extinction’ Trailer Has Optimus Prime Vs. Grimlock (111 Screenshots) Next → Second ‘Transformers Age of Extinction’ Trailer Has Optimus Prime Vs. Grimlock