When stereoscopic or three-dimensional motion pictures are shown, a missile flying in the projector's direction makes spectators dodge in their seats. Despite this powerful illusion, Hollywood has shown no enthusiasm for three-dimensional pictures. Some time ago it occurred to an inventive cinema cameraman named Joseph Valentine that something simpler might be tried, a suggestion of roundness and solidity although not an actual third dimension —something that would make characters on the screen less flat than animated pancakes. He looked for a simple way to achieve this effect, last week announced to the press that he had succeeded.
Lensman Valentine's invention has not...