cinelog.org

Sid Grauman in the Chinese Theatre forecourt (photo courtesy of Jefferey Hawkins).

From 1939, this peculiar invention split images on screen, via a rotating shutter disk, which alternated between an opening and mirror; the opening projecting a frame of film in a traditional fashion, the mirror reflecting a frame to a moveable secondary mirror and on to a specific area of the screen (controlled by the projectionist). […]