One of the shortests films ever made, no film shows the words "no film" for less then three seconds.
"It was a time when I was desperately unhappy that I wasn’t really doing anything, no more films. Wilhelm and Birgit Hein once took a photograph from a newspaper, saying that, although the image doesn’t move on the screen, it’s still film. I shot a few words – “No Film” – which don’t move either but are a film just the same. And so: no film. Question mark."