TedStixon

Revealing mistake: In the beginning of the film, watch closely when Sindel says the infamous line "Too bad YOU... will die!" When Sindel says the words "will die," two of her teeth suddenly turn gray and become blurred. (One tooth on top and one on the bottom.) The best I can figure is that it was some sort-of slip up with the special effects rendering, since the background has a CGI sky replacement effect. It can be hard to notice at first, but if you know where to look, it's pretty obvious.

TedStixon

Revealing mistake: When Liu transforms into a dragon during the final battle, the wideshot where he actually transforms while being held by Kahn is completely laughable. The digital dragon clips through portions of the live-action background (particularly around Khan's arm that was hanging onto Liu) and the lighting on the dragon doesn't match with the lightning flashes in the background.

TedStixon

Revealing mistake: When Smoke is running up to Kitana at the start of the Liu VS Smoke fight, Liu runs up behind him, jumps and pushes his foot against a pillar to sort of rebound, and grabs Smoke. There's a quick insert shot of Liu's foot pushing against the pillar, and you can see the "stone" pillar briefly bend like rubber beneath his foot, revealing it's fake.

TedStixon

Revealing mistake: During the Jax vs Cyrax fight, pay attention right after Jax says "Yeah, now what?!" A few shots later, Sonya is hit in the face with a weapon by one of the extermination squad members. But you can see plain as day that the weapon completely misses her. It actually goes over her head, but she still reacts as though she's been hit in the face.

TedStixon

Revealing mistake: During the Liu VS Baraka fight, pay attention when Liu and the Barakas are swinging around on the chains. Several times, you can see safety-wires attached to the chains and actors. It can be hard to catch, but there are at least three or four shots where they are visible.

TedStixon

Revealing mistake: When Sheeva is crushed by the cage, pay attention to the first shot as we see the cage falling towards her. You can see the cage actually come to a stop right before it cuts to the low-angle shot looking up at her screaming. (Since it would be rigged to stop above the actress so it wouldn't actually crush her. They unfortunately just cut the shot too late).

TedStixon

Revealing mistake: When Rayden and Kahn fight at the start of the film, at one point Rayden does a flying body-spear into Kahn, which sends him flying backwards. When he lands on the ground, the floor beneath him "warbles," revealing he landed on a pad. It also continues to move a bit for the rest of the shot as he moves.

TedStixon

Revealing mistake: When the Emperor's generals are introduced at the start of the film, pay attention to Sheeva's lower arms. If you look closely, her lower arms are added digitally and don't quite blend with the actress, nor do they 100% match her motion. (Especially her lower-right arm, which is on the left hand side of the screen. You can see it "clipping" with the background plate. At one point, it even briefly looks like it's floating behind her for a moment instead of being attached to her).

TedStixon

Revealing mistake: Jax and Sonya jumping away from the explosion when Cyrax self-destructs is just comical. The lighting on their bodies doesn't match the lighting in the background, revealing they were just filmed on a green-screen, and the background makes no sense whatsoever. The background is a blurry still image that doesn't have the same color-temperature as the exterior of the base seen earlier, with an obvious stock-explosion effect added over top of it that doesn't blend properly into the scene.

TedStixon

Revealing mistake: During the Jax vs Cyrax fight, at one point Jax gets knocked down to his knee, and then Cyrax kicks him, causing him to fly upwards and backwards and roll over the top of the metal gurney. Except you can see plain as day that Cyrax's kick completely misses Jax. He kicks his leg about two feet in front of Jax's head.

TedStixon

Revealing mistake: When Sonya is facing the "extermination squad" while Jax fights Cyrax, watch closely. At one point, a ninja clad all in black does a jump-kick, which knocks Sonya back. Except if you look closely, he doesn't actually kick her. (It's really obvious when the camera cuts to a side-view and you can see he doesn't have his leg extended.) But they still add in a kicking sound and have Sonya react as though she's been kicked.

TedStixon

Revealing mistake: During the Scorpion vs Sub-Zero fight, after the ice-bridge collapses, when Sub-Zero jumps down to the lower level of the stone bridge to face his foe, you can see the floor beneath him ungulate as he lands, revealing there's a pad beneath the snow.

TedStixon

Revealing mistake: Cyras appears, who launches two spherical bombs that attach to the walls and explode. Watch very closely. There is a low angle shot pointed towards a doorway right after they explode, and you can see the set wall visible shake for a brief instant from the pyrotechnics. It can be hard to catch, but once you see it, it's very obvious.

TedStixon

Revealing mistake: During the Scorpion VS Sub-Zero fight, at one point, Scorpion kicks Sub-Zero and he almost falls into a lava pit, falling and wedging himself next to a stone pillar. (It's the bit where Liu has to jump across to save him.) When he hits the stone pillar, it wobbles like it's made of styrofoam, revealing it's not really stone.

TedStixon