If you look closely, there are many "Mickeys" in the scenery. For example, look in the bushes in various scenes and you will see three circles that form Mickey's head. See more...
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Continuity: During the forest cottages' dressmaking sequence in the middle of the film, watch the backgrounds carefully. You will see backgrounds change themselves from one scene to the next (doorhandles disappear and reappear, plates reposition themselves on shelves, flowers mysteriously regroup themselves).