Have you ever heard dialogue from any part of one movie being used in the next? I swear, I heard Epps say, "Heads up!" from the radio tower in the first movie when the two V22 offspreys crash each other as some NEST guy prays to reach the city in TF3. Any others?
When the tomahawk missiles were on the way, you heard "time on target, 20 seconds". That same line was used in both of the other movies (i think) when the Predator drones were flying in for a closer look at the battles: survivors vs. Scorponok, autobots + soldiers vs. Decepticons. And, no one shit on me if i'm wrong! I haven't watched either of the movies in a while!
I only noticed because of a Youtube vid,but the "target acquired" guy was from Rotf. Also,Crowbar makes a Bonecrusher noise when he hits the sign
Things like these often happen in movies but most people dont notice it. It could be very well possible.
When Sentinel transforms to escape the Bots in the final battle he makes the same noise as Megs did in ROTF when his face got blown off.