If you watch the first 3 Transformers movies simultaneously, you discover Michael Bay is extremely lazy.
The guys at RedLetterMedia prepared for the release of Transformers 4 by watching the first three movies simultaneously. When they weren’t fighting back waves of nausea, they discovered remarkable coincidences between the movies, particularly the first two, where similar story beats with the same characters happened within moments of each other. Why, it’s almost like they were cynically stamped out like license plates!
source: Ryan Cooper of theweek.com