Continuity mistake: The protagonist, Neil and Kat are in the back of the yellow ambulance in the parking garage. Neil checks on Kat, after that he removes plastic gloves from his hands and throws them into the trash right next to him, 2 cuts later he again crumples a pair of plastic gloves. (02:00:00)
Other mistake: In the theatre/opera scene the whole hall full of people are put into sleep with gas attack. They pass out in seconds. A minute later the compromised agent jumps from the private room to the same hall without any oxygen mask... and is completely fine.
Visible crew/equipment: When the protagonist travels in time and gets in the car, a shot from outside reveals a small black car behind him reflected on the bumper. From the immediate wide angle the car is gone. Seemingly the filming vehicle for, according to footage of the making-of a small black car was the one holding the filming crane.Sacha