Transformers is a 2007 live-action film adaptation of the Transformers franchise, directed by Michael Bay and written by Roberto Orci and Alex Kurtzman. It stars Shia LaBeouf as Sam Witwicky, a teenager involved in a war between the heroic Autobots and the evil Decepticons, two factions of alien robots who can disguise themselves by transforming into everyday machinery. The Decepticons desire control of the All Spark, the object that created their robotic race, with the intention of using it to build an army by giving life to the machines of Earth.