Continuity mistake: At the beginning of the cartoon, you can see the front of Donald Duck's kayak has nothing on it. But after he is soaked by a waterfall, a lever appears out of nowhere. The lever disappears in the next shot, but when he arrives at the campsite, it is back again.
Continuity mistake: After the mouse is revived by water from Jasper, he goes up to the cat and you can see that the mouse's left hand is under Jasper's mouth, but in the next shot his hand is now near the whisker area.
Continuity mistake: When Porky is searching for his contract in the waste-paper basket in Leon Schlesinger's office, he leaves some paper on the floor. But when Leon tells him to go back to work, we cut to Porky and the paper has gone.
Continuity mistake: After Mickey hides Pluto in his suitcase in Burbank, Mickey picks up his cane and runs to the train, then when Mickey actually jumps onto the train caboose he's only carrying his suitcase, he does not have his cane, nor does he have Pluto's suitcase (which had been filled with bones) with him. The cane reappears on the train later, and at the end Pluto's suitcase mysteriously reappears when Pete throws it at the duo in Pomona.
Continuity mistake: The car the deputy and contractor drove up in disappears. That road was one lane which would have been a hell of a back up job. Then almost instantly the 2nd car full of deputies flies up like a bat out of hell "hey what's going on" indicating they didn't speak to the contractor because they had no idea what occurred. The next sequence Casey points in direction from where the deputies just flew up. The complete opposite of where the woman was actually lying. The poor woman would have been ran over. (01:11:53)
Continuity mistake: When Ellen tells her mother-in-law about her whereabouts in the Indian Ocean, Irene Dunn's hand is held high up on the column, and at the base in the following shot. (00:09:35)