Stupor Duck (1956)

Continuity mistake: When Cluck Trent leaves his office to change into Stupor Duck, the floor is completed covered in water. But when Stupor Duck enters the editor's office, look behind him and you can see the water has gone.

Trivia: In the opening sequence, the announcer says that Stupor Duck is "more powerful than a steaming locomotive" and we see a barely functional train. What you actually see is a clip from the 1945 Warner Brothers cartoon, "Hare Trigger."