In March the movie was released on DVD in the US. The US-DVD only features the promotionally effective "Unrated" version of the movie. The version shown in theatres was about three minutes shorter and rated "R" by the MPAA. Although the R-Rated version has not been released in the USA on DVD it has been released in other countries, e.g. in Germany.
The differences between the two versions are not to be found in the brutal scenes, instead there are some plot extensions and some scenes that probably had to be removed due to the sexual content which might have cost the movie the R-Rating in theatres.
