Revealing mistake: The paving slab Broomhilda falls onto and supposedly breaks is already broken.
Revealing mistake: You can see that a huge rectangular hole has been cut into the ceiling of Latrines boudoir and filled in with balsa wood for when Rottingham gets catapulted through.
Revealing mistake: At the start when the fire arrows are hitting the hay roofs, you can clearly see wet patches of petrol or kerosene on the roofs, so that the fire can ignite quickly.
Revealing mistake: During the banquet scene, Robin slams the heavy carcass of a wild pig onto the table in front of Prince John. But throughout the fight, when the Sheriff and John are hiding, the carcass of the pig is being moved with the slightest movement as if it's hollow. A real wild pig of that size would not be moved so easily.
Revealing mistake: Blinkin runs into a tree after regaining sight, only to lose it again. The tree wobbles.
Revealing mistake: In the arrow contest, as Robin was about to be assassinated, Blinkin grabs the arrow. If you look closely, as his arm reaches out, you see that Blinkin already has the arrow in his hand.
Revealing mistake: When Blinkin falls out of the look-out post and crashes into the large tree, you can see it wobble.
Chosen answer: The scene is an homage to the late, great comedy team, Abbott and Costello. Bud Abbott was the straight man and Lou Costello was the goofy laugh-getter. Part of their act was Costello getting frustrated trying to understand Abbott and yelling "hey Abbott" at him.
Guy