Continuity mistake: When Ethan and the girl are sliding down the rope at the opera, in one shot, as it should be, her dress is up around her neck - that is all we see - and in another shot, the dress is down around her ankles, which it shouldn't be.
Continuity mistake: During the bike chase scene, Ethan chases the last rider who is trying to shoot IIsa. He follows a right bend to catch and get in the inside of this rider. Ethan then knocks him from the inside of the bend. As he is on the inside of the bend, he would be knocking the rider to the left. However, in the next shot Ethan has knocked him off on a straight road with the bike and biker now falling to the right, which would be impossible from the previous shot, with both rider and bike falling towards an embankment. In last segment the scene changes back to Ethan exiting the bend with the rider's bike travelling now in the opposite direction along the ground towards the edge of the road, before exploding when hitting the barrier. (01:16:00 - 01:17:00)