Disney's marketing department added a small sticker to the film's poster saying "All New!" possibly due to the fact that people thought this was just a re-release (which The Walt Disney Company was well known for during the '70s, '80s and' 90s) of the original film The Apple Dumpling Gang (1975). Posters exist both with and without the sticker.
Third and final of three theatrical feature film collaborations of actor Don Knotts and director Vincent McEveety. The movies are in order: Gus (1976), Herbie Goes to Monte Carlo (1977) and The Apple Dumpling Gang Rides Again (1979). All of these flicks were from the Walt Disney Productions movie studio.