Continuity mistake: When Cathy is duct taped in the SUV the tape is around her body, but when the SUV crashes she gets out and there is only duct tape around her wrists.
Continuity mistake: After the beta safe house is deconspired, when Jack gets into a car in order to follow his girlfriend's kidnappers, there's a man in the other seat of his vehicle. As the car slides into the street, only one person can be seen inside, though. However, the man then reappears in the next scene. (01:16:00)
Continuity mistake: According to the movie ticket stub, Ryan saw the film 'Sorry, Wrong Number' on 21 September 2012. Yet, a few days later in Moscow, when hacking Cherevin's files, many of them were created in 2013.
Continuity mistake: When Harper meets Ryan, who's out jogging in the rain, for the second time to recruit him into the CIA, the hood on Ryan's jacket moves between shots, most noticeably in the very close-up shot of his face. (00:12:00)
Continuity mistake: When Ryan and his fiancee meet Viktor Cherevin at the hotel, he purposefully drinks and allows Viktor to accompany her. That's when Ryan's colleague steals Viktor's wallet and says sorry, bumping into him. Before hitting him he's on a call, with his mobile in his right hand and steals the wallet with his left hand. In the very next frame he's seen giving Ryan the wallet with his right hand with his mobile in his left hand. (01:00:00)
Continuity mistake: While Jack is chasing Cathy's kidnap vehicle, we see the two GPS markers on a map, on a straight road, with no turns needed for Jack to catch up. Next shot shows Jack tearing round a corner at high speed. He's then told of a hard left coming up, which the map shows - a hard left followed by another long straight. He takes the hard left, then immediately takes a right turn that not only doesn't exist on the map, takes him away from the direction Cathy is going. (01:17:50)
Continuity mistake: In the scene where the van jumps into the water and is going to explode with Aleksandr still inside. The van was likely jumped only 20m from the cliff (above a building actually?), but in the next shot, it shows that the car explodes 100m from the cliff, and there's no building beside the river. (01:35:05)
Answer: From what I could tell, at the beginning you see a smoky glass partition (or glass-like) by the toilets. I couldn't really tell what for, maybe a changing area. Before the toilet gets broken, this partition gets shot and shatters. That's what's on the floor. But I can't see how it could get around the toilet like it does without some mistake.
Bishop73