Fantasy filmmaker Ray Harryhausen pioneered a variation of rear projection in the 1950s and 1960s with Dynamation, where the rear screen was placed on a miniature set along with stop-motion creatures. Harryhausen figured out a way to synchronize the movement of the miniature figures with the background projection as a way to insert live-action humans in the same scene as the creatures.
The American made version of 'Saint Joan of Arc" was the first movie created with the advent of "The Hansard Process" one of the pioneers in Rear Screen Special Processing. The Tornado in the Wizard of Oz was created by "The Hansard Process" technology and company.
Alfred Hitchcock used the process successfully to show Cary Grant being attacked by a crop duster plane in North by Northwest, but was criticized when he used it extensively in Marnie.
[ Glass vs. Acrylic for Photography Framing ]
Making the correct glazing choice for a frame requires research and an understanding of both materials.