Blue Meanies have six fingers on each hand. This is probably poking fun at the common practice amongst animators of dropping the pinkie finger when drawing hands, leaving the character with four fingers.
In the beginning when the Chief Blue Meanie is holding up Max and scolding him, the colors/stripes on Max's boots switch back and forth a couple times.
Starring Sgt. Pepper's Lonely Hearts Club Band
The British release of the movie had a different ending to the American (and subsequent video) release. Apart from different individual scenes, the American ending has a softer and more considerate feel to it, due to the final conversion of the Chief Blue Meanie to Love, Peace and Music; the British version contains no such sentiments.
$107,105 8 July 2018