The voice of Bowser Koopa was actually provided by a woman, Akiko Wada, a famous singer from Japan.
This film was never translated into English nor was it distributed in the USA.
This is the 1st time Luigi appears taller and thinner than Mario.
The name of the song played during the end credits is "I Love You", sung by Mami Yamase who also voiced Peach in this movie.
The first ever animated adaptation of the "Super Mario Bros." video game, not counting Mario's appearance in the show "Saturday Supercade".