Revealing mistakes: The Ark hardly seemed large enough to hold Noah and his family, let alone 2 of every animal.
Factual errors: In the scene where Noah is loading animals onto the ark, four sheep are shown entering instead of the prescribed two of every animal. However, Genesis 7:2 of the Bible says that Noah was to board two of every "unclean" animal and seven of every "clean" animal. Sheep are considered "clean".
Continuity: One of Noah's son's is shown riding a "zebra" in the scene showing the loading of the animals onto the ark. However, it obviously is a donkey or mule made to look like a zebra. Also, while he is riding the zebra, two other zebras are shown being loaded.