Other mistake: When Stupor Duck looks into the mirror and sees that the shoulder pads on his costume are positioned incorrectly, look at the mirror and you can see that the "S" on his costume is the right way round - it should be back to front.
Continuity mistake: In a full view of the railroad trestle, you can see there is nothing by the dynamite charge. But in a close-up, a sign saying "Movie Location" suddenly appears.
Continuity mistake: The editor's office has a door handle on it when Cluck Trent is standing by it, but when Stupor Duck has entered the office, the handle has gone.
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.
Continuity mistake: When Cluck Trent is using his typewriter at the beginning of the short, you can see there is nothing by the machine, but when the camera closes in on Trent, a sign saying "Cluck Trent Reporter" appears.