As in filming during the firefights was a dangerous experience, from UK My Park Magazine. Regarding the sections that involved explosions and blanks fired from rifles, Shia LaBeouf notes:

"Even an eyelash flying at you at 700 miles an hour will cut you. You're running past them, and your clearance is only about 10 feet. These dudes are moving, and if one trips or falls and we run into the muzzle of a blank, that could blow your chest open or burn you."

Lieutenant Colonel Gregory Bishop, the film's Army liaison, adds that it's the "biggest joint military operation movie ever made, in terms of Army, Air Force, Navy and Marines."

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