Continuity mistake: In the factory, Batman lies down the corpse horizontally/across the ramp he's walking on, but when he runs off, the body is turned 90°. It's already baffling that he took the time to deal with it at all, even more unlikely that he'd drag it on the floor looking for the best Feng Shui arrangement for it in the hostile environment. (01:10:10)
Continuity mistake: Once Batman falls to the ground after Hush first shoots his line, there are 3 different angles in shots of him lying on the ground. In each, the position of his arms change slightly in how outstretched they are above his head, and being closer or further away from his head. (01:11:14)