The original version was released uncut with a "Not under 16" rating in German cinemas in 1978, the 1983 VHS release was uncut as well. The 1992 VHS re-release was cut (ca. 3 minutes) due to the fact that in the 1980s the uncut version was put on the index for youth endangering media. Only in 2001 the film was removed from that index and the film was re-released uncut, again with a "Not under 16" rating.
In all non-premium cable channel prints (i.e edited versions of the movie,) Dr. Kane's death is edited strongly.