Continuity mistake: During the sequence where the wolf (dressed as Granny) is chasing Bugs through the various doors, you can see that the door at the foot of the stairs has a knob on the right. When the wolf removes the door so he can take its place, the knob has moved to the left side of the door.
Little Red Riding Rabbit (1944)
1 mistake
Little Red Riding Hood: Hey, Grandma! That's an awfully big set of teeth for you... to have.
Wolf: Ah, le adorable froufrou... GET OUT.