Last Metro-Goldwyn-Mayer (MGM) cartoon produced by Fred Quimby, also the only one he produced alongside William Hanna and Joseph Barbera.
The first cartoon since War Dogs (1943) by the team of William Hanna and Joseph Barbera starring characters other than "Tom and Jerry."
The mice resemble the style of what mice are drawn in the Tom and Jerry series.
The last one-shot MGM cartoon until The Dot and the Line: A Romance in Lower Mathematics (1965), although it's the only one-shot MGM cartoon filmed in CinemaScope.