Trivia: When Bumblebee first appears and parks itself in the used car lot, it's parked beside a yellow Beetle. The yellow Beetle was the original form of Bumblebee in the Transformers cartoon series.
Trivia: When the meteors containing the Autobots crash to Earth, people are running towards the crash sites to see what's going on. One guy with a video camera is saying something like "This is gonna be a hundred times better than 'Armageddon', I promise!". Of course referring to the movie 'Armageddon', a film also directed by Michael Bay.
Trivia: When the Xbox 360 transforms, the sound used is not the normal Transformers sound, but the sound made by the 360 when you turn it on.
Trivia: The "changing sound" that is familiar to all Transformers fans from the TV show, was added to the movie despite opposition from Michael Bay, who wanted a more "robotic" sounding transformation. Hasbro would not license the film unless the director at least stayed true to this one aspect of the TV franchise.
Trivia: During the highway battle towards the end, a small shot shows the Autobots and Decepticons driving in a wide shot of the entire highway. There is an overhead bridge, on which are standing many people with their cars, as they watch the shooting. Michael Bay, in his director's commentary, said that they were Transformers fans who lived in the nearby area.
Trivia: Peter Cullen, the voice of Optimus in the cartoons, was cast as the voice of Optimus in the movie due to public demand, after it was determined that his voice hadn't aged too much. Frank Welker, who voiced Megatron in the original series, was also in the running for this film, but his voice was now too old to fit the character.