Visible crew/equipment: After George's hypnosis and brainwashing are complete, the boom slips into the shot at the upper right corner of the screen.

Continuity: In close-up, Illya is covering the phone receiver with his left hand, but drops the hand to his side when he tells the operator, "Never mind." There's an immediate cut to a wider angle, and his left hand is suddenly back on the receiver in the same position as before.

Visible crew/equipment: When Solo enters the scanning room, the shadow of the boom assembly sweeps down the wall on the right side of the door.

Plot hole: U.N.C.L.E.'s yellow badges were worn only inside HQ, and were supposed to set off alarms if you didn't wear one, or if they were taken from the building. But here, Solo passes through security and walks out with his badge still on, and the alarms don't sound.

Visible crew/equipment: When Carla enters Waverly's office, both the boom mike and its shadow are prominently visible at the top of the shot.

Plot hole: Waverly installs the explosive ring on Solo's finger and arms it, then says, "No one is to know you've been issued a priority ring." Odd command. It's a huge and conspicuous gold and red ring that he can't take off, and everyone at U.N.C.L.E. knows what it is. So how can Solo possibly keep it a secret?