Kinoautomat

Kinoautomat 1967 was the worlds first interactive movie, conceived by Radz inera for the Czechoslovak Pavilion at Expo 67 in Montreal. At nine points during the film the action stops, and a moderator appears on stage to ask the audience to choose between two scenes following an audience vote, the chosen scene is played.

The version presented in Montreal had been dubbed into English in London, and was subtitled One Man and his House. The production took place in a custombuilt cinema, with buttons installed on each of the 127 seats, one green and one red. The lead actor Hornek performed the moderators role phonetically, since he spoke no English. As the audience cast their vote, the result of each choice was displayed on the perimeter of the screen, with a numbered panel corresponding to each seat turning red or green according to the button pressed. The interactive element was achieved by switching a lens cap between two synchronised projectors, each with a different cut of the film.The project was well received, with The New Yorker writing The Kinoautomat in the Czechoslovak Pavilion is a guaranteed hit of the World Exposition, and the Czechs should build a monument to the man who conceived the idea, Radz inera. Initially, Hollywood studios were keen to license the technology, but under the Communist government the Kinoautomat concept was the property of the state, and never made the transition. ........

Source: Wikipedia