Transformers: Age of Extinction is a 2014 American science fiction action film based on the Transformers toy line. First released on June 27, 2014, it is the fourth installment of the live-action Transformers film series. Like its predecessors, Transformers, Transformers: Revenge of the Fallen, and Transformers: Dark of the Moon, Transformers: Age of Extinction is directed by Michael Bay.