Though popular in Japan, Dragon Ball Z films were generally not regarded as canon. Toriyama made his original character design for the film, which is known as “Super Guy in the Galaxy” in Europe. The film introduced a new character, the titular alien villain Bojack created by Dragon Ball Z chief writer and Bojack Unbound scriptwriter Takao Koyama.
It finally released physically with an English dub by Funimation in 2004 and has since seen several rereleases in HD. At just 51 minutes long, Dragon Ball Z: Bojack Unbound released in Japanese theaters in 1993, though it didn’t make it to North America until over a decade later.