Actor Allusion: Rover continues to make jokes and remarks when he's depressed. Rodney Dangerfield became a comedian to cope with depression.
Box Office Bomb: The film's budget and box office numbers are unknown, so it's left to assumption that it's a complete bust.
Descended Creator: In addition to playing the lead, Rodney Dangerfield co-wrote and produced the film, and even wrote the lyrics to the songs.
Executive Meddling: According to animation historian Jerry Beck, Rover Dangerfield was originally conceived as an R-rated comedy which more accurately captured Dangerfield's standup routine, but was retooled as a kid-friendly version to compete against Disney.
Follow the Leader: Attempted to one-up Disney when the executives got involved, even with many aspects of the original material still present in the final cut.