Continuity mistake: When Sandy and Tessa are talking in Sandy's office, the cricket ball on his desk vanishes, then reappears in a different location. (00:39:10 - 00:39:40)
Continuity mistake: In the Berlin scene, when Birgit pushes her bike off, she immediately passes a double-parked black car as the door opens. In the next shot on Justin, we see Birgit cycling off in the middle distance, just about to pass the same black car. There is no other double-parked car between Justin and the bicycle.
Continuity mistake: When Justin is talking to the intelligence agent on the escarpment near the end of the film, the sweat marks on the front of his shirt keep changing. (01:36:10)
Revealing mistake: When Tessa plays a QuickTime movie, the movie's counter stays at 0:00 and the progress indicator doesn't move.
Factual error: In the web chat you can see the term 500 mbps on her streaming. That's far higher than any realistic speed for that time and place, and way above what's needed for web chat anyway. (00:22:50)