These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Big Lipped Alligator Moment: Early in the movie, Dorothy meets a talking signpost who points in three different directions to Emerald City but has no clue which is the correct way. He sings a song about his predicament, and...Dorothy just walks off and leaves him. He is never mentioned, nor seen again, and his situation is never resolved.