Continuity mistake: When the fembot Robin Swallows, and a male assassin at the party attempt to murder Austin, Robin gets a knife in the back which stays there even when they get blown out of the window. As they're falling, notice that before she turns over it's still in her back, even when Austin moves her in front of himself to shield his fall. The only problem is, with the knife still in her back Austin would've been really injured when they hit the ground. However, when they land, the knife mysteriously disappears. (00:28:30)
Continuity mistake: Austin is in a different position in his frozen state in this film than he was in the first film when he was unfrozen.
Continuity mistake: When Basil is driving Austin through the big warehouse to where the time machine is, the car is travelling in a straight line yet he is turning the steering wheel. (00:23:00)
Continuity mistake: When Austin is playing chess with Ivana, his necklace symbol keeps switching sides, yet he clearly isn't jolting around enough for it to move in this way.
Continuity mistake: After Austin and Felicity have crossed the street in London and have sat down at the cafe, where Burt and Elvis are playing, Felicity has a red handbag with her. She places the bag on the table whilst her and Austin talk about the future. When Austin says "care to dance" the bag is still on the table. They both go to dance, and the table is taken away by a woman towards the edge of the screen. The scene goes back to Austin and Felicity dancing for a second. The woman can now be seen with two chairs, but no table or red handbag.
Continuity mistake: There is a scene when Austin and Felicity spend a day on the town, go back to Austin's shag pad, then separate for the night. The next day they are back in the same exact clothes as yesterday (after a clothes change piece the night before).
Continuity mistake: In the "Starbucks" scene you can see a paper cup of coffee, and a muffin on the table in front of Dr. Evil. (His pocket mirror is not visible in the first shot.) During next two minutes of the film the different items continually change their positions with the different camera angles; furthermore a piece of paper appears and disappears. (00:14:05)
Continuity mistake: When Austin and Mini Me are fighting Mini Me hocks a loogie in Austin's face. The spit disappears almost immediately but we never see Austin wipe it away.