Audio problem: In the final fight scene between Liu and Shang Tsung, Liu hits Shang in the face repeatedly, but there is one extra hit sound for which there is no motion.
Audio problem: Right before the film ends, the giant spectral Shao Khan says the line "You weak, pathetic fools! I've come for your souls!" His mouth more-or-less matches "You weak, pathetic fools!", but it doesn't match "I've come for your souls!" in the slightest. (It looks as if he's saying something else entirely, and they dubbed in a new line in ADR).
Answer: Sonya's pistol looks to be a Glock, Model 17 or 19. It looks like the barrel was broken off up to about the front end of the trigger guard. If she fired it like that, the bullet would have significantly reduced muzzle velocity because the recoil spring is gone (it would be in the front part of the weapon that was frozen and broken off.) The remaining part of the slide wouldn't have any resistance working against it. Not only would that result in less pressure inside the chamber during firing, but it would also most likely send the slide back into Sonya's face if she pulled the trigger.
Mobrien316