Final film of Lou Costello, and his only starring role without Bud Abbott. It wasn't released until about five months after Costello's death.
During the finale when Pinsetter is launched briefly into space, he flies next to a space capsule. A dog is heard barking, and Pinsetter barks back at the capsule. This reference would have been widely understood by movie going audiences of that era. After the successful launch of Sputnik, the world's first satellite in October 1957, the Soviet Union followed up the next month with Sputnik 2 which carried a dog named Laika into space to test the effects of space flight on animals.
This is not, as has been often stated, Lou Costello's only film without Bud Abbott. Costello traveled to Hollywood in the late 1920s, before he teamed up with Abbott, and appeared as a stuntman and extra in several films.
While the entendres and euphemisms seem really mild by modern standards, this spoof of the previous year's Attack of the 50 Foot Woman is noteworthy for its risqué humor. It's especially striking for Lou Costello, who spent most of his career under the tight censorship of radio and television. Even the famous Abbott & Costello films were always family-friendly in their time.