New 'Transformers: Revenge of the Fallen' Secrets!

'Transformers: Revenge of the Fallen' is finally exploding into theaters and IMAX, and ET's Mark Steines has new behind-the-scenes secrets!

Shia LaBeouf tells ET that he didn't hesitate to respond when director Michael Bay called him for the mega-sequel. "Oh yeah, for sure -- because [the phone's] not even listed as Michael Bay -- it's just listed as pick up."

And Tyrese Gibson says of working on the sequel, "We just had the time of our life, man. We were out there in the white sands -- that's where you came [to visit]."