The private jet that flies Sam to Florida is actually Michael Bay's (the director) own private jet.
After appearing in the original Transformers movie over 25 years ago, Leonard Nimoy makes his return into the franchise as Sentinel prime . while on a interview with bigfanboy.com, Nimoy said “i Kept wondering if i would ever get a call” specially since the director Michael Bay is Nimoy’s wife's second cousin. And after getting a email from Bay asking if he would do it, Nimoy asked him why he hadn't call him earlier, to which Bay responded “since your my wife's cousin, i was worried if i didn't have enough money to pay you, it would be embarrassing.”
When Megan Fox was fired shortly before filming began, Gemma Arterton, Amanda Seyfried, Ashley Greene, Brooklyn Decker, Miranda Kerr, Bar Refaeli, Amber Heard, Camilla Belle, Emmanuelle Chriqui, Julianne Hough, Hayden Panettiere, Vanessa Hudgens, Jessica Lowndes, Scarlett Johansson, Mila Kunis, Blake Lively, Carey Mulligan, Emily Blunt, Lucy Hale, Katie Cassidy, Heidi Montag and Anna Kendrick were all rumored to replace her before Rosie Huntington-Whiteley was chosen as the new love interest..
Tony Todd, who played The Fallen in 'Revenge of the Fallen', was set to play a human character in this film. But the character was ultimately written out.
Bumblebee received an upgrade and will now be a 2011 Chevrolet Camaro.
Rosie Huntington-Whiteley will be playing Carly, a primary character that was introduced in the second season of "The Transformers" (1984).