Continuity mistake: Ash is chased by an evil entity to an abandoned windmill and only prevents it from getting him by barricading the door shut, yet when he smashes the mirror you can see the door behind him and it's wide open. (00:30:10 - 00:31:45)
Continuity mistake: When Lord Arthur shoots the crossbow at the fleeing prisoner near the beginning, the camera angle changes to that of the arrow. For a moment, before the camera changes angles again, the arrow is going slower than the guy running. (00:10:30)
Continuity mistake: Where did Ash's chainsaw go? He uses it once to get out of the pit, once to dismember bad Ash, and then it disappears. Why didn't he use it during the final fight, when a chainsaw would have been much more effective than a sword, even while not running. (00:39:50)
Suggested correction: It's debatable whether a chainsaw would be more useful than a sword. Ash could have simply decided against using his chainsaw. Alternatively, he could have used it off-screen, but it simply broke. Also, Ash is commonly depicted to be an idiot, so that could explain it.
Suggested correction: In addition to the other answer, it's also entirely possible he simply ran out of gas for it, and didn't want to siphon gas from his car to use it. Either way, a character discarding a weapon isn't a mistake in the slightest.
