Revealing mistake: In the scene where Mary Poppins is removing the large plant from her carpet bag, Michael inspects the underside of the table, where the table leg casts a shadow across his face. When Mary crosses in front of him (still under the table) she does NOT cast a shadow, although she should.
Add timeLee Davis
Revealing mistake: In the tea party on the ceiling scene when Mary takes out her watch, watch closely, she doesn't take it from behind her jacket. When she seems to reach behind her jacket it just appears in her hand. When she puts it back she reaches behind her jacket again, but it just disappears just before she puts her hand back there.
Revealing mistake: When Mary Poppins goes to bring out the hat stand and the mirror, you can tell that the underside of the table is masked with a overlap of the background to make the illusion complete. Also, when she pulls out the mirror, watch the table leg closest to her, and the bottom of the mirror pass, because the illusion is not quite far enough to cover it.
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