Episode #1.2 - S1-E2
Factual error: The Fitzhuberts' soirée in February 1900 is said to be the first of the new century. The beginning of the 20th century (unlike the Millennium) was celebrated correctly in 1901. 1900 was correctly understood to be the last year of the 19th century.
Continuity mistake: Ruth Deaver is helping Alan Pangborn put on his tie. The camera is facing Ruth's back and we see Alan's face in the mirror. The camera then switches angles to face Alan's back and Ruth's face. Alan's collar which was popped straight up from the first angle is now perfectly down over his newly tied tie from the second angle. (00:24:55)
Audio problem: The kids are sitting across from an older couple in a diner. The older woman is talking about her husband. The scene cuts to a shot behind the old woman. Her mouth isn't moving but she is talking.
You're Mine - S2-E8
Continuity mistake: After Eve kills Raymond, Villanelle tells her to take her shirt off. In a shot from behind, Villanelle puts her hand around Eve's back. Then it cuts to a shot beside them both, and both hands are in front of Eve.
Continuity mistake: Just before the portal opens where Sonic comes out by a water fall, you get a good view of the ground around where he comes out at and there are no holes. But once he emerges, he looks around and then looks down and suddenly there are large holes that become what he focuses on. (00:00:25)
Factual error: After Dr. Austin directs the anesthesiologist to urgently start phentolamine intravenously to address the patient's hypertensive crisis on the operating room table, the anesthesiologist is seen quickly rolling the clamp on the line, purportedly to make it run faster. The clamp however is being rolled in the direction to close off line's flow. (00:20:20)
Visible crew/equipment: In the final minutes, it is possible to see a drone flying between the camera's point of view and the subject being filmed, the DEA agents' van going into Mexico. Likely filming equipment, but even if recreational it's hardly appropriate for the 80's. (01:06:30)
Visible crew/equipment: Camera equipment is visible in the glass of the plane as the shot pulls in on the cockpit. It is fast but noticeable.