This was originally intended as a Donald Duck cartoon.
This short film was re-released in theaters in 1989 with Cheetah (1989). And then the short was re-released in theaters again in 2000 with Fantasia 2000 (1999).
This is one of a handful of cartoons played constantly on a special television channel at Walt Disney World resorts.
Adapted into a 5-page comic book story "The Friendly Invasion" by Jack Bradbury in the magazine Mickey Mouse 75 in 1960. While not strictly faithful, the print story followed the basic plot of the short. Reprinted in MM 250 in 1989, and in translated form in numerous European editions of the Donald Duck magazine (Anders And, Kalle Anka, Aku Ankka etc).