The color of the umbrella handle that Kanta offers Satsuki changes.
Some of the whiskers on Mei's drawing of Totoro vanish in a wide view.
When Mei and Satsuki are running back home from school because of the rain, Mei trips and gets mud on her skirt. After a few scenes, her skirt does not have any mud.
When Mei is walking around with corn, a goat walks up and bears its large teeth.
The goat shows a full set of upper and lower teeth. This is a mistake as goats do not have upper teeth.
When the father bikes with his daughters down a hill, on the road they ride on there are stones and parts of wood, but the bike doesn't shake.
When Satsuki and Mei are waiting for the bus in the rain, the bus stop sign reads 'Maezawa-gyo' in some scenes while in other scenes the sign reads 'Shichikokuyama-gyo'.