 Regarding Alternate versions in MCA/Universal laserdiscs and videos: as  recently as the 1985 edition all missing scenes were restored to the  laserdisc. It was the first Discovision pressing in 1981 which removed the  previously listed scenes, and this was because early laserdiscs were not  capable of quite as high capacity as in later years. The studio removed those  scenes for the laserdisc because they were not essential to the plot and they  allowed the movie to fit onto the Discovision disc. (HBO, for instance, ran  Flash Gordon at the same time that Discovision released their edition but HBO  included the missing scenes.) Later editions which continue to delete those  few scenes are unremastered versions made from the Discovision edit.