Continuity: There's a part when Raiden, Liu Kang, Kitana, Jade Jax and Sonya are confronted by 3 ninjas and Sindel. Raiden decides to take on the ninjas, but you'll notice that he only fights against 2 of them.

Continuity: In the final battle between Motoro and Jax, Motoro breaks Jax's bionic arms and hold it up to Shao Kahn. The cloakless Shao Kahn, who has been fighting Liu Kang, all of a sudden has his cloak on again.

Visible crew/equipment: At the end of the Sub-Zero vs Scorpion fight, Liu Kang jumps over to help Sub-Zero and Scorpion teleports away. A few moments later you see a shot where you see all the actors, (Liu Kang, Sub-Zero and Kitana), if you look closely you can see scorpion waiting in the background just waiting to pop up and snatch Kitana.