The first appearance of Butch the bulldog.
The large fat man on the poster when Butch was chasing Pluto into the carnival is Roy Williams, one of the mousketeers from the "Mickey Mouse Club" TV series.
This is the first Pluto cartoon to have the logo "Pluto" in the introduction instead of "Pluto the Pup".
According to animator, Randy Cartwright, the belly dancer poster shown in the carnival was inspired by Little Egypt from the 1893 Chicago Fair Exhibition.