Singer reckons that Hitler was behind the controls of the armored vehicle. "We had one tank that malfunctioned and it started rolling on it's own. It started rolling towards the camera equipment and nothing was stopping it because it's a tank and it's meant to roll over camera crews and other things in it's way," Contactmusic quoted him, as saying.
"A very brave guy crawled in it and worked the brake system and got it to stop. Maybe the ghost of Hitler was in there!" the director added. In the new film, Cruise plays a real-life German officer who led an assassination attempt on Hitler.