Audio problem: In the dream-café Cobb talks to Ariadne right before telling her that it's all a dream, but from a side angle the mouth doesn't match the sound coming out, which obviously belongs to the front angles.
Audio problem: When the news helicopter descends on the house as the news of the ICC trial breaks on the TV, the helicopter rotor makes no sound or almost no sound until the shot changes to see it, despite it being very loud once it is visible. The sound of its blades also fades very quickly as it leaves, despite any pilot presumably being very careful so close to a building.
Audio problem: When Dina says to Ryan that she didn't love Brad, just him, there is one point where she says, "No, I never did." When she does, her mouth does match up for the word "No" but not for the rest. (00:06:05)
Audio problem: When Niko is going to get the key for somewhere for Zoe to hide and then Zoe disappears he says "Zoe"? When he says it his mouth does not move but once he finishes saying it that's when his mouth moves.