Chizzilini's hair color changes from white to black when Curly kicks the globe at his head.
Chizzilini's hat falls off when the globe knocks him out, but in the next shot when Moe chases Curly around the table, Chizzilini's unconscious body is shown and he is still wearing his hat.
The bugler is seen blowing his horn, but the fanfare starts a few seconds before he even starts blowing it.
When Curly kicks the globe to Chizzilini's head, it actually knocks into the camera lens.
When Moe is shaving, he rips off his fake Hitler mustache to shave under there with shaving cream and then puts it back on, the tape would not have stick to Moe's skin with shaving cream.
The sound effect where the Japanese delegate smashes his head into the tray, hiding in Larry's shirt, comes in too late.