The scene where
Tom Cruise "peels off his face" to reveal
Dougray Scott was achieved in one shot by shooting both actors against a green screen. Cruise, not wearing a mask, was simply told to place his hand in a pre-arranged position under his chin then pull his hand across his face. Scott wore a plain mask with sensors that could provide a computer with a three-dimensional view of his face. He then peeled off this mask to finish the scene. Cruise's face was superimposed on the mask as it is pulled away and the two images morphed together in the computer; the background of the 747 cabin was added in to replace the green screen. (Watch the scene with frame advance and you will see a slight transitional 'swirl' on the mask halfway through the scene).
Kevin Yagher contributed some more traditional latex mask effects for other face-peeling scenes.
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