Factual error: The evil fairy states that Princess Aurora will prick her finger on a spindle - the part of a spinning wheel that holds the bobbin. Spindles aren't sharp; what Aurora actually pricks her finger on is the distaff, which is used to hold the fiber before it is spun.
Factual error: Phillip cuts through the thorny mess on his way to the castle by swinging his sword from side to side. He and his mount then advance without harm through the overgrowth. Cutting to the left and right would not clear the path directly in front of them.
Other mistake: When the three fairies are cleaning up the cottage, Merriwether has the broom magically sweep all the dust into a pile, then she makes the pile disappear. Right after it does so, the picture is stuck in a freeze-frame for about half a second.