In the gay '90s, cardsharps take over a Mississippi riverboat from a kindly captain. Their first act is to change the showboat into a floating gambling house. A ham actor and his bumbling sidekick try to devise a way to help the captain regain ownership of the vessel.

Lester and Orville accidentally launch a rocket which is supposed to fly to Mars. Instead it goes to New Orleans for Mardi Gras. They are then forced by bank robber Mugsy and his pal Harry to fly to Venus where they find a civilization made up entirely of women, men having been banished.

Lou Costello plays a country bumpkin vacuum-cleaner salesman, working for the company run by the crooked Bud Abbott. To try to keep him under his thumb, Abbott convinces Costello that he's a crackerjack salesman. This comedy is somewhat like "The Time of Their Lives," in that Abbott and Costello don't have much screen time together and there are very few vaudeville bits woven into the plot.

A devoted secretary embarks on a dangerous mission to try to find the elusive woman who may prove her boss didn't murder his wife.

Biography of Jackie Robinson, the first black major league baseball player in the 20th century. Traces his career in the negro leagues and the major leagues.

Two hapless waiters in a tavern on the Spanish Main play cupid between aristocratic Lady Jane and tavern co-worker Bruce Martindale, but the two bumpkins mix-up a love letter with Captain Kidd's treasure map of Skull Island, leading to them being kidnapped and taken off to the notorious pirate's island.

After two volunteer firemen rescue a gold prospector from suicide, they discover that the police mistakenly want them for murder.

Deranged scientist, Gustav Niemann, escapes from prison and overtakes the director of a traveling chamber of horrors, soon reviving the infamous Count Dracula, the frozen Frankenstein Monster, and the Wolf Man.

The Wolf Man tries to warn a dimwitted porter that Dracula wants his brain for Frankenstein monster's body.

In northwest Africa, a tribal leader tries to stir up a rebellion against the ruling powers.