Mary Hughes's film debut.
Average Shot Length = ~5.4 seconds. Median Shot Length = ~4.9 seconds.
During the climactic fight scene, Frankie Avalon and Peter Lorre stare at each other for a few seconds with Frankie saying that Lorre looks familiar. This is in reference to the fact that the two of them worked together previously in the film Voyage to the Bottom of the Sea.
This is the only film in the series not to feature Eric Von Zipper and his gang the Rats.
This was the first acting role for Peter Lupus who is playing Flex Martian under the name "Rock Stevens". This would lead to an early career in Europe where he would play the lead role in various sword and sandal/mythological muscleman movies that were then in vogue.