How many different versions do exist of this movie?
The situation concerning the different movie versions is as unconventional as the movie. Educated guesses have to be made about the reasons for this because it was never openly discussed in interviews or movie reviews. However, it is a fact the frame plot holding the stories together is completely different outside of the US.
Whereas viewers in Europe and elsewhere can watch three youths searching for an especially shocking videoclip, the US Version features the story of an unsuccessful writer trying to pitch his ideas.
The home cinema releases bring another movie cut into play: the extended version of the international version. To make things even more complicated the British Blu-ray contains only the Extended International Version (without a hint on the cover) PLUS an "Alternate Cut", which is the US Theatrical Version.
The US Blu-ray: The "Outrageous Edition" contains the US Theatrical Version without any extensions and an "Alternate Cut", advertised as "the version not shown in theaters". Guess what it is? Right, the Extended International Version. The regular International Version hasn't been released yet and therefore only a comparison between the US Theatrical Version and the Extended International Version with pictures can be found here.