Other mistake: It's raining outside. Dorothy comes in the house and says "it's really coming down", then shakes her coat off although it's not wet. Then Stan shows up with an umbrella that's not wet. Then Sophia's brother Angelo shows up and isn't wet either.
Other mistake: Blanche asks Daisy to go to Rose's room to get the things she set out for the rummage sale. Daisy goes into the first room on the right and gets the items, including Rose's teddy bear. Blanche gives it to her for helping out. Rose comes home, goes to her room and comes back asking where her bear is. Problem is, Rose's room is at the end of the hall on the left.