Shooting WORLD TRADE CENTER was especially painful for actor Nicolas Cage, because he lost a friend on September 11th (01) The Oliver Stone movie deals with the true story of two firemen trapped in the debris of the fallen towers - one of whom is played by the FACE/OFF actor. He says, "I knew a chef who had worked in Windows on the World, the restaurant at the top on one of the towers. He didn't make it, which made the whole thing even more personal for me." The Oscar winning actor, who has donated his reported $7.2 million (GBP4 million) salary to charity, says, "I was shocked and horrified when I turned on the television, and I haven't been able to get those images out of my head since."