The movie was originally planned to be an R-rated animated film, but Warner Brothers wanted it toned down to earn a G-rating.
Rodney Dangerfield performed his lines in front of cameras, creating a visual reference point for the animators to copy his physical expressions.
The film was conceived in the late 1980s, and originally set for a December 1988 release.
In his autobiography, "It's Not Easy Bein' Me," Rodney Dangerfield wrote of this film: "I put some of my own money into an animated movie about dogs. It had some songs, which I wrote, and I even sang a few. In character, of course. I thought it was a funny movie, but I had some trouble with the studio, and they buried it like a bone."
When Rover sees the roses that he gives Connie as her birthday present, the words "Appearing Now" above a picture of Rodney Dangerfield are on the wall directly behind him. Dangerfield voiced Rover, and wrote the story for the movie.