Onion Mastori: The Movie/Trivia

Cultural references

 * On one the TV screens in the cafe scene, there is a television program called "Southern Street", which is a reference of both Sesame Street and South Park.
 * When the Onion Mastori and his brothers are inside the video store, if you look closely, you can see DVD copies of The Gabriel Garza Movie, another film by Universal.
 * "Kanpai" means "Cheers" in Japanese, which it's written "かんぱい" in Japanese.

Cameos

 * In Onion's room, a poster of Me & Mobo can be seen.

Trivia

 * This is the fourth Universal animated film to be produced in a 2.35:1 aspect ratio, after Gools, Magic, Travelling & Circuses and Magina
 * The film was originally going to be 150 minutes, but it was shortened to 92 minutes due to script issues.
 * The film originally marked the finale of the series, but due to it's success at the box office, Universal ordered more episodes of the series.