This is the most expensive Transformers film, having a budget of 260 million dollars.
This will be the second Hollywood movie to be shot in Cuba after The Fate of the Furious (2017). Coincidently, Tyrese Gibson played a major role in the first three Transformers movies, and the Fast & Furious franchise.
Michael Bay is a noted dog lover and cast Freya, a British dog with epilepsy that many homes had rejected, in the film.
Michael Bay said that this will be the last Transformers film he will ever direct, for the moment. He is open to doing more films in the future if he gets a good story.
The scenes of Sir Edmund Burton visiting 10 Downing Street were filmed at the actual office of the British Prime Minister in October 2016.
Onslaught's original alternate mode in The Transformers (1984) was an anti-aircraft truck, but this was revised to a Western Star tow truck. His green color is an homage to the Autobot Tow-Line in Transformers: Robots in Disguise (2000), who was a green tow truck.
While shooting in England, Mark Wahlberg spent time at St Aidan's Church incognito, and made donations. No one knew anything until later on. Reverend Father Des McGiven said: "It's great that we had him in for the service, and appreciate his generosity towards our church."
Liam Garrigan (King Arthur) also played the character King Arthur in the television series Once Upon a Time (2011).
This is the second Michael Bay film to have a World War II setting, after Pearl Harbor (2001).
This film features the myth of King Arthur. Michael Bay was previously going to direct King Arthur (2004), and had worked on that film for five years, before leaving it due to budget issues.
Hot Rod's French accent was Michael Bay's idea, as he thought it would give Hot Rod a unique character.
Hot Rod is the second Lamborghini Transformer to appear after Lockdown in Transformers: Age of Extinction (2014). Generally each Transformer in these films has a unique vehicle mode.
Part of the film was shot at Stonehenge. Michael Bay requested to shoot an explosion on the location, but was denied, so he had a set of Stonehenge constructed to shoot the explosion.
The same year this film releases, Sir Anthony Hopkins plays Odin, the Norse god, in Thor: Ragnarok (2017). Frank Welker had previously played Odin in Avengers Assemble (2013).
Sir Anthony Hopkins is the third Marvel Cinematic Universe actor to star in a Transformers movie, after Hugo Weaving (Megatron in the first three films), and is the second actor from the RED comic-book movies to do so after John Malkovich (Bruce Brazos in Transformers: Dark of the Moon (2011))..
Many of the scenes were filmed in the north east of England, with several streets in Newcastle Upon Tyne brought to a standstill, while scenes were completed.
Hot Rod's alternate mode in The Transformers: The Movie (1986) and The Transformers (1984) was a concept car and a Ford GT, but this was revised to a Citroën DS and later a Lamborghini Centenario.
Writer Matt Holloway is a fan of the drama Downton Abbey (2010), and jokingly said that Jim Carter (who plays the butler Mr Carson in the show) should voice Cogman. He was shocked when Michael Bay got Carter on as Cogman.
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