Screening Room: Film academy salutes inventor Petro Vlahos

A Michael Schultz double feature, silent comedies, rock documentaries and Hugh Hefner are also on tap.

Petro Vlahos might not be a household name, but he's one of the most accomplished scientific and technical innovators in film and television. He holds more than 35 patents on equipment including camera crane motor controls, optical soundtracks and projection screens, but he's best known for creating both the analog and digital hardware and software versions of the Ultimatte compositing system.