Continuity mistake: Near the end of the movie, Ethan tells Peter that he had his wallet all along. Peter steps forward from the car wearing his glasses. In the very next shot, they are gone and nowhere to be seen. (01:16:30)
Continuity mistake: In the scene where Peter (Robert Downey, Jr.) is drinking the energy drink in the petrol station, the angle of the bottle changes. From the profile shot, the label can be seen with the brand visible, but cut to the front-view and you can see that the bottle has completely shifted angles.
Continuity mistake: On the airplane, Zack's 2nd from the top shirt button is unbuttoned. Between frames it suddenly becomes buttoned.
Continuity mistake: When the car goes off the flatbed type ramp, there are no rails on the sides. In the next shot as the car makes the jump, there are now railings on the ramp.
Continuity mistake: When the station wagon knocks the car door off, there is no one directly behind it and only one Chevy a way back. In the next shot when Peter is looking out the door, suddenly there are several cars behind them. And the Chevy we see is not the same one we saw earlier.
Continuity mistake: When Ethan starts laughing at Peter's story of his dad leaving, the dog is sitting on the jacket. In the next shot of the dog, the jacket is moved down and he's no longer sitting on it. The bottle of water on the jacket also changes position.