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In order to see a 3-D image, one needs a "left" and a "right" image, which the brain then combines to see stereoscopically. In the 1950s, all of the 3-D features (like House of Wax and Creature From the Black Lagoon) were shot with 2 cameras... and shown with 2 projectors, running in sync. For The Stewardesses, a new method of filming and showing 3-D was used. The 2 images exist side by side on each frame of film, thus eliminating any possibility that the images can go out of sync. In 1971, a dupe negative was created for this film, in which the 2 images were anamorphically squeezed to make room for the optical soundtrack. To show the film, one uses a split lens to "blend" the 2 images, and an anamorphic (scope) lens to unsqueeze the images. For theatrical projection, one must also use a "silver" screen in order that the light not depolarize. For our 3-D DVD, we're going back to the original, "unsqueezed" camera negative, and creating a brand new "left" and "right" video tape, which will then be used to make a stunning new 3-D DVD. The film has never looked this good! |