Audio problem: Right after Jackson has been dragged through the desert by the creature, it wakes him up and he says, "Get away from me," but his mouth never moves. (00:40:30)
Audio problem: Counsellor Troi visits Picard in his quarters after he finds out that his brother dies. Listen to Picard say "Counsellor - er". There is an audio editing mistake of some sort where you could clearly hear that his voice was dubbed over the original, the original being off by a fraction of a second. The "er" sound from "Counsellor" is repeated. (00:38:20)
Audio problem: When the man with the peg leg is trying to resist getting a shot of anti-smallpox serum from Professor Waldman, he yells, "You're not sticking that in me. You're not sticking that in me." But if you look closely, you can see that his lips are not moving. (00:32:45)
Audio problem: There is a scene in the lab where Arnie is explaining his pregnancy to Emma. The shot cuts to a side-on, rear shot of Arnie and it is very clear his mouth or jaw isn't moving and yet you can hear him talking.
Audio problem: When the good guys finally get the Chevy V8 running, the sound it makes sounds more like a moped than a high-performance engine. It has headers and no mufflers, so it should have been quite loud.
Audio problem: When Chun-Li's group is pretending to be the magicians, she ends the act by jumping into the outstretched arms of Balrog and Honda. You hear Honda say, "How about our explosive finale?" His lips don't move, even though you hear him say it.
Audio problem: During the final battle, when Sean and Crane start fighting with their arm-blades, listen closely. There's just a few too many "blade clashing" sound effects added in, and it doesn't always perfectly match up to what's on-screen. More were obviously added in to make it seem more dramatic, but it doesn't quite seem "right" if you pay close attention.