Continuity mistake: When Dorothy comes running into the farm at the beginning of the movie, there's a lone cow in the pen behind her and a couple of white chickens that she ends up chasing in the direction of the camera as she runs near the house. Two shots later the cow disappears and the white chickens are now in the pen. (00:02:55)????
Continuity mistake: We see a Munchkin in a blue shirt climbing out of a manhole in the middle of the Yellow Brick Road and he has a prominent red scarf on. The wardrobe Continuity Person goofs because whenever we see him again, as in a glimpse in the very next shot and when Dorothy leaves Munchkin Land, the red scarf is gone. (00:23:20 - 00:33:25)????
Continuity mistake: In the scene when they discover the Wizard behind the curtain there is a change in the equipment on his wall. At first the big lit up gauge thing with the two levers above it is lit, about a minute later when the Scarecrow gets his diploma the angle has changed and the gauge thing is dark. (01:28:55 - 01:29:55)????