USA Today ran an article covering how filming of Transformers: Revenge of the Fallen's finale went on during the shoot at White Sands Missile Range, New Mexico. Josh Duhamel, who plays Major Will Lennox, jokes about how he and the others on the set were Bay's "toy soldiers" and the missile range was literally his "sandbox". On the US military's involvement, they saw the collaboration as a morale-booster for the troops and training, although Army liasion Lt. Col. Gregory Bishop stepped his foot down when it came to using the tanks - no live rounds, training only. Bay admits that while they can imitate the resulting dust and fire, they can't quite imitate the sound that is emitted when a shell is fired.

Read the rest at the original article and the additional pyrotechnic hijinks when they set the explosives loose!