Transformers: Revenge of the Fallen is a 2009 American science fiction action film based on Hasbro's Transformers toy line. The film is the second installment in the Transformers film series and the sequel to Transformers (2007). The film is directed by Michael Bay and written by Ehren Kruger, Roberto Orci, and Alex Kurtzman. Taking place two years after the previous film, the story revolves around Optimus Prime, Sam Witwicky, and the Autobots allying once again in the war against the Decepticons, led by Megatron. An ancient Decepticon named the Fallen, seeks revenge on Earth and intends to find and activate a machine that would destroy the Sun and all life in the process.

Transformers is a 2007 American science fiction action film based on Hasbro's toy line of the same name. It is the first installment in the Transformers film series. The film is directed by Michael Bay from a screenplay by Roberto Orci and Alex Kurtzman. It stars Shia LaBeouf as Sam Witwicky, a teenager who gets caught up in a war between the heroic Autobots and the villainous Decepticons, two factions of alien robots who can disguise themselves by transforming into everyday machinery, primarily vehicles. The Autobots intend to retrieve and use the AllSpark, the powerful artifact that created their robotic race that is on Earth, to rebuild their home planet Cybertron and end the war, while the Decepticons have the intention of using it to build an army by giving life to the machines of Earth. Tyrese Gibson, Josh Duhamel, Anthony Anderson, Megan Fox, Rachael Taylor, John Turturro, and Jon Voight also star, while Peter Cullen and Hugo Weaving voice Optimus Prime and Megatron, respectively.