Audio problem: When Holmwood has the gun pointed in Van Helsing's face in Lucy's crypt, Van Helsing explains about the undead. Switch to a shot behind Helsing and his jaw is still moving even though he has stopped speaking. (01:25:35)
Audio problem: When Aaron attacks "Bishop II", he yells, "F***in' android.", but the words don't match the movement of his lips. (01:41:45)
Audio problem: When Claire is in the car about to leave hospital, she turns around to tell Emma to put her seat-belt on. Though you hear her say "fasten your seat-belt sweetheart" - her lips aren't moving when you hear "sweetheart".
Audio problem: When Buffy is using the flag as a weapon to fight Lothos, you can hear the metal clang of the sword, but the flag pole is made from wood.
Audio problem: When Joey sees Doc as a Cenobite and flees as he blows up the storefront, she bumps into a random guy who is seemingly somehow missed the explosion that happened about 20 feet in front of him. Not only is it ludicrous he isn't fleeing, but his dialogue is also painfully obviously overdubbed.
Audio problem: At the police station, Helen and Jake are talking. When the camera is on Jake, Helen says her lines but her mouth and the words are out of sync.