Kaiserfilm
Kaiserfilm , Kaiserdreh or Kaiser is a term from the field of film production and means without a film . Originally, the film crews agreed that it was incomprehensible to outsiders to merely fake a recording. It was then "shot" with an empty reel or without a cassette, thus saving expensive film material without, for example, duping vain celebrities.
The term allegedly has its origin from the fact that Kaiser Wilhelm II wanted to be filmed so often that the cameramen loaded “Kaiserfilm” into the camera and only pretended the recordings.
Today, the term is also used for profane (video) film material that was actually created, which is not suitable for broadcasting or cannot be used and therefore ends up in the archive or is deleted.