Event Horizon was Paul W. S. Anderson's breakthrough as a director, and despite him not having the best reputation among movie fans, Even Horizon does have many fans up to this day.

Although the movie had been intended to get the R-Rating, many test viewers and the studio thought that the sometimes extreme violent scenes were too drastic. Paramount then told Anderson to cut his originally 130 minutes long movie by half an hour and tone down the violence. Especially the visions of hell were affected by this. The softened version was then released to cinemas and is up to this day also contained on every home cinema release.

When the DVD era was in full bloom and Paramount announced a Special Edition rerelease of the movie after the barebone first DVD. It was also said that it would contain the uncensored long version. However, disappointment followed quickly: in the pre-DVD era, the original footage was very often thrown away or not stored the right way. Because of the poor quality of the original film footage, Anderson was not able to restore his old version. For example, the footage of the hell scenes was found in an old salt mine in Transsylvania. ...A story which could remind one of "Raiders of the Lost Tape". In the end, there were many Deleted Scenes but no Extended Version on the disc. By the way, the high popularity of the movie is a reason why this movie has one of the very few comparisons with deleted scenes in our archives, although so far only in the German part of our website. Of course, the Deleted Scenes were better than nothing and the fans at least had a chance to see the removed footage, but euphoria is something different.

However, the story seems to continue. On the ComicCon 2012, Anderson announced that producer Lloyd Levin found a VHS of his old long version, but it remains unclear whether this means that an uncut release is being prepared or whether VHS quality is even good enough for the HD era.