A film-projector is attached to the wall at a hight of about 2,30
m, so that it can project onto the floor.
The film lys loosly on a
white surface beneath the projector.
The beginning of the film is
fitted into the projector.
When the projector is switched on, it draws
the film slowly up and preojects it. The film shows the filmmaterial
being slowly unreeled on the floor.
With the same speed in which the
real film in the projector disappears and is rolled up, it is been
replaced by its duplicate.