Pitt and Shia LaBeouf play American soldiers with a tank dubbed "Fury" taking on one final mission inside Nazi Germany. In June, the cast even trained with a tank crew at the military's National Training Center in Fort Irwin, Calif.
According to Britain's Daily Mirror, Pitt also met with a 90-year-old British ex-tank crewman who answered all the actor's questions about wartime life with the giant machines.
Veteran Peter Comfort told the Mirror that the film company has asked his regiment, the Light Dragoons, "if there were any old boys left," and then put him in touch with Pitt, who "was very nice."
Also starring in the film along with Pitt and LaBeouf is Scott Eastwood, the 27-year-old son of Hollywood legend Clint, who earned plenty of attention recently for a studly pictorial in Town & Country magazine.
"Fury" is scheduled for a Nov. 14, 2014, release.