(at around 1 hour 30 minutes) While they are on the outside of the private jet en route to Mumbai, the engine is audible at idle. In the final shot of the sequence the sound shifts to the engine increasing thrust; however, the fan blades are clearly stationary and not rotating, so the engine is not running and could not be producing that noise.
(at around the two-hour mark) Near the end of the film, Ethan Hunt places a handful of dollar notes on the table to settle the bill, and the sound of coins dropping is audible.
At approximately 1:37:45 the audio has Ethan Hunt saying "Get us that code!". On screen, however, he is plainly saying something different.











