Transformers Dark of the Moon (2011): Cast, Plot and Ending Explained
Transformers: Dark of the Moon (2011), directed by Michael Bay, is the third main film in the live action Transformers saga and the highest grossing film in the series, with $1.12 billion worldwide, according to Box Office Mojo. Shia LaBeouf returns as Sam Witwicky, Rosie Huntington-Whiteley debuts as Carly, and the story takes the Autobots to the Moon and then to a ruined Chicago.
What Is the Plot of Transformers Dark of the Moon?
Transformers: Dark of the Moon is about a crashed Cybertronian ship on the far side of the Moon and the race between Autobots and Decepticons to claim what it carried. The setup below stays inside the first act.
A spacecraft called the Ark crashes on the far side of the Moon in 1962, and the American government secretly sends the 1969 Apollo 11 mission to investigate it. Jump to the present day and Optimus Prime learns that a fuel cell the Decepticons are hunting came from that ship. So, the Autobots travel to the Moon, where they find their former leader Sentinel Prime, along with technology tied to a device called a Space Bridge.
Back on Earth, Sam Witwicky has a different problem. He is struggling to find a job and live a normal life with his new girlfriend Carly, which is a fairly relatable stress next to a robot war. The full story, including the betrayal and the Chicago battle, sits in the spoiler section that follows.
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Steve Jablonsky composed the score for Transformers: Dark of the Moon (2011), and the film's album, "Transformers: Dark of the Moon: The Album: Music From and Inspired by the Film," came out on Reprise Records on June 7, 2011, with 14 tracks.
The headline song is "Iridescent" by Linkin Park. It plays as Sam rides through a devastated Chicago, and it returns over the end credits. It was not the only band-led track tied to the end credits: "Monster" by Paramore, which was written for the film, also plays there, along with "Many of Horror" by Biffy Clyro and "The Only Hope for Me Is You" by My Chemical Romance.
The quieter placements are more specific. "All That You Are" by Goo Goo Dolls, another song written for the film, plays while Sam is at work. "Sweet Emotion" by Aerosmith backs a montage of Sam going on job interviews, which suits the film's early stretch where he cannot land a job. "North Star" by U2 plays briefly at the start of the scene where Sam visits his girlfriend's office.
The songs in question:
"Iridescent" by Linkin Park
"Monster" by Paramore (written for the film)
"All That You Are" by Goo Goo Dolls (written for the film)
"Sweet Emotion" by Aerosmith
"Many of Horror" by Biffy Clyro
"The Only Hope for Me Is You" by My Chemical Romance
"North Star" by U2
For composers and songs across every film in the saga, see the Cinvibe transformers soundtrack page.
Transformers Dark of the Moon Plot: Full StorySpoilers
The full story of Transformers: Dark of the Moon turns on one betrayal and one siege, and everything after the first act is revealed here.
In 1962 the Ark, a ship carrying Cybertronian technology, crashes on the Moon, and the United States quietly sends Apollo 11 there in 1969 to examine it. In the present, Optimus Prime realizes that the fuel cell the Decepticons are chasing came from the Ark. The Autobots go to the Moon and find Sentinel Prime, their old leader, together with five Pillars that can create a Space Bridge. Sentinel is revived, and the Autobots expect an ally.
They get a traitor. Sentinel secretly sides with Megatron, hoping to save the dying Cybertron. The Decepticons use the Pillars to start pulling Cybertron toward Earth, and they invade Chicago to make it happen. That sets up the long third act, where Sam, Lennox and the NEST soldiers fight alongside the Autobots in the ruined city.
The plan depends on one piece of hardware. Bumblebee destroys the Control Pillar that holds the plan together, and with it gone the pull on Cybertron breaks. Optimus Prime then kills both Megatron and Sentinel Prime. The Decepticon threat is broken, and the Autobots remain on Earth.
When Was the Transformers Dark of the Moon Release Date?
Transformers: Dark of the Moon opened in the US on June 29, 2011, after a world premiere in Moscow on June 23, 2011. The UK release followed on July 1, 2011, and Australia opened on June 29, 2011.
The world premiere opened the Moscow International Film Festival, according to The Moscow Times. Linkin Park then played an outdoor concert at Vasilyevsky Spusk on Red Square after the screening, according to TheWrap. A robot movie premiere followed by a rock show on Red Square is about as loud as release stunts get.
The US rollout began a day early. The film opened in 3D and IMAX theaters with early screenings on June 28, 2011, before the wide opening on June 29. For where the film sits against the others, see the transformers movies in order guide, where it is fourth in release order and sixth in chronological order.
Transformers Dark of the Moon Ending ExplainedSpoilers
The ending of Transformers: Dark of the Moon works in three steps: Bumblebee breaks the plan, Optimus Prime kills the two enemies, and the Autobots stay on Earth.
Step one is the Control Pillar. Bumblebee takes it out, which stops Cybertron's approach and breaks the Decepticon invasion. That is the mechanical hinge of the whole third act: the Space Bridge needs the Pillars, so remove the one that holds the plan together and the plan stops. Step two is the kill. Optimus Prime kills Megatron and the traitor Sentinel Prime. Step three is the aftermath. The surviving Autobots stay on Earth as allies of humanity, which leaves them as protectors of the planet after the battle of Chicago.
What does it mean? Sentinel Prime wanted to save Cybertron at any cost, and the film makes that a tragic motive instead of a cartoon one. The cost is the human city, and Optimus has to be the one to stop it. It could be argued that this is the cleanest conflict the saga has staged, because the villain is a former Autobot leader rather than a stranger.
In my opinion, the best part of the ending is how it uses the series' two oldest threads. Megatron has chased the Autobots since transformers 2007, and Optimus finally ends him here. The sequel then resets the board entirely: transformers age of extinction opens five years after the battle of Chicago with humans seeing the Transformers as a threat. So the Autobots win the war and lose the public in the same stretch of the saga.
Where Was Transformers Dark of the Moon Filmed?
Transformers: Dark of the Moon was filmed across the United States and abroad, with Chicago used for the battle scenes and northwest Indiana standing in for Ukraine.
The list of locations runs wide. Northwest Indiana, around Gary, doubled for Ukraine. Los Angeles, including Sherman Oaks and other areas, hosted shoots. Chicago was used for the battle scenes, which is where the third act takes place. The production also filmed at the Kennedy Space Center in Florida and the Johnson Space Center in Houston, which suits a story that opens with Apollo 11. Washington, D.C., Milwaukee and Detroit were also used.
Outside the US, the film shot at Angkor Wat in Cambodia and in Moscow, the same city that hosted the world premiere. The real map is as scattered as the story map, which jumps from the Moon to a Ukrainian setting shot in Indiana to a ruined Chicago.
Transformers Dark of the Moon Trivia and Box Office
Transformers: Dark of the Moon grossed $1.12 billion worldwide on a budget of about $195 million, according to Box Office Mojo, which makes it a clear hit rather than a flop.
The split tells its own story. Domestic gross was $352 million and international gross was $771 million, so roughly 69 percent of the money came from outside the US. Both transformers revenge of the fallen and transformers age of extinction earned less worldwide, so Dark of the Moon is the highest worldwide figure of the series. The full table is on the transformers box office page.
A few facts from the production. The film had its world premiere at the Moscow International Film Festival on June 23, 2011, the first time a Hollywood blockbuster opened the festival. Linkin Park played the Red Square concert afterward. Steven Spielberg and Michael Bay are credited as executive producers. Megan Fox did not return, and Rosie Huntington-Whiteley took the role of Sam's new girlfriend. The film opened in 3D and IMAX theaters across the US, with early screenings on June 28, 2011.
Why is Megan Fox not in Transformers: Dark of the Moon?
Megan Fox did not return for the film, and Rosie Huntington-Whiteley took the role of Sam's new girlfriend, Carly. The Register reported that Steven Spielberg wanted Fox fired after her comments about Michael Bay. That is a report rather than a studio statement.
Was Transformers: Dark of the Moon a hit or a flop?
It was a hit. Transformers: Dark of the Moon grossed $1.12 billion worldwide on a budget of about $195 million, according to Box Office Mojo, and it is the highest grossing film in the series. Domestic gross was $352 million and international gross was $771 million. Was Dark of the Moon a success? By those numbers, yes.
What happened to Sam Witwicky after Dark of the Moon?
Sam Witwicky does not appear among the top billed cast of Transformers: Age of Extinction (2014), which follows Cade Yeager instead. TheWrap reported on October 6, 2026 that Shia LaBeouf is not returning for the next Transformers film, which is in development with no release date. See new transformers movie for the latest.
Who is the woman in Transformers: Dark of the Moon?
The woman at the center of Sam's story is Carly, his new girlfriend, played by Rosie Huntington-Whiteley after Megan Fox did not return. Frances McDormand also appears as Mearing.
Why did Transformers use Linkin Park?
No official reason has been reported. Linkin Park contributed Iridescent to Dark of the Moon, supplied New Divide for Revenge of the Fallen, and played a concert on Red Square after the Moscow premiere.
What song is in Transformers 3?
The headline song in Transformers: Dark of the Moon (the third main film) is Iridescent by Linkin Park. Other notable songs are Monster by Paramore and All That You Are by Goo Goo Dolls. Steve Jablonsky composed the score.
