In Spain it was dubbed into Spanish entirely by the comedian 'Angel Garó', a single-handed feat that earned him entry to the Guinness Book of Records.
Includes a dedication for "Our Children and Our Childrens' Children".
Originally supposed to be released in November 1991 but the release was delayed to avoid the competition with Disney's Beauty and the Beast (1991).
The "FernGully" forest depicted in the film was actually based on Austraila's rainforests. The cartoonists who worked on the film spent time in the real rainforests to help inspire their drawings.
The logo of apparel company Body Glove can be found among the handprints in the opening. (Look along the bottom for one with polygons inside of it)
Zak's work permit, as seen in his wallet has the following information on it: Young, Zak P.O. Box 423 Byron Bay NSW 2451 Australia HT: 5.41 WT: 175 AGE: 16 EYES: BRN
For the Spanish version of the film, comedian Ángel Garó dubbed all the characters of the movie.