Audio problem: When Glen/Glenda is in the baby cradle, the words do not match the lips when he/she says, "We can finally be a real family."
Audio problem: Just after the captain of the other boat (Bill's friend) breaks the bottle, and looks over the side, you hear a voice say "What the hell was that" although the guy's mouth doesn't move, also the voice sounds more like Bill's low voice than this guy's Australian-sounding accent.
Audio problem: When the chief of police arrives at the blood farm he is surprised by Blade and Abigail. He quickly reaches inside his jacket to draw his pistol but Abigail draws her revolver much faster. As she draws there is the unmistakable metallic sound of a revolver being cocked, but when she extends the revolver out in front of her to cover the chief the hammer is down, not cocked. The revolver could be seen in the holster with the hammer down, so she could not have been manually decocking it to make that sound.
Audio problem: When Dr. Gordon is dialing 911, we hear one low tone then two higher tones. On touch-tones phones, 1, 4, and 7 are the lowest tones while 3, 6 and 9 are the highest. Gordon would have dialed a 1, 4 or 7 first and then a 3, 6 or 9 twice in succession. Possibly 1-9-9 for Emergency? (00:55:50)
Audio problem: When Karen is in the house talking on the phone, she says "He won't come down," (referring to Toshio) but her lips don't move.
Audio problem: After Philip gets bitten and they all get into his Jaguar, Barbara asks Philip "Are you alright, dear?" As she says this, her lips are not moving.
Audio problem: In the scene where the monster saves Anna by knocking down the last Bride, there is one shot where he turns to look at Anna framed in the window. His right leg support makes the hissing sound without any steam coming out of it.
Audio problem: At the end, as Dax rescues Sahara and loads her into the evac shuttle, he steps away from the craft. Bugs are swarming the scene, but it is apparent that Dax is staying behind. Sahara cries out, "You stay here, you die!" and we hear Dax reply, "Murderers don't go home," which is an overdub. His mouth visibly says something very different with several more syllables.