Continuity mistake: After Roo and Lumpy leave Pooh's house, they slam the door hard (there is a crashing sound when the honey pots inside crash from the slam). But later when Pooh and the others return, the door is ominously wide open.
Continuity mistake: When Tigger's family portrait falls on him, it falls picture forward. However when you see Tigger's face looking out through the back of the portrait, the pushed in parts of the portrait are blank. They should be showing parts of the portrait since they're from the portrait side.