A car is burning in front of the Alps and swallows it’s smoke. Two screens, one scene: one backwards, one forward. The impact on the ground of the car falling from the sky and flying back to it is the point of synchronization of both channels. The car is disappearing and exploding loop after loop. The sound channels of both projections forward and backwards access into each other creates a collage of sound. 1896 in “The Demolition of a Wall” Louis Lumiere used the first reverse motion in a film. Demolition and especially explosion is used as spectacle in film. In Hohenpeissenberg the staging of the film stunt is reduced to a decelerated explosion.