Seven different versions of Ridley Scott's 1982 science fiction film Blade Runner have been shown, either to test audiences or theatrically. The best known versions are the Workprint, the US Theatrical Cut, the International Cut, the Director's Cut and the Final Cut. These five versions are included in both the 2007 five-disc Ultimate Collectors Edition and 2012 30th-Anniversary Collector's Edition releases. There also exists the San Diego Sneak Preview Cut, which was only shown once at a preview screening and the US Broadcast Cut, which was edited for television broadcast. In the 2007 documentary Dangerous Days: The Making of Blade Runner, there is a reference to director Ridley Scott presenting an eighth version, a nearly four-hour-long "early cut", that was shown only to studio personnel. The following is a timeline of these various versions.