Starring: Robert Wagner, Malachi Throne
Revealing mistake: The saloon's upper level railing looks solid until just before the bad guy falls through it, when the cuts in the break-away section are prominently visible. (00:26:05)
Beyond a Treasonable Doubt - S3-E23
Revealing mistake: Somehow you'd think that a gadget-happy government spy agency would be capable of replacing a dead battery. The clock in the SIA HQ board room remains at 10:10 throughout the entire 5-minute interrogation scene with Mundy. (00:07:00)
A Thief is a Thief (a.k.a. Magnificent Thief) - S1-E1
Continuity mistake: When Mundy and Claire are sitting in the car outside the apartment building, the rear view mirror has disappeared (probably removed to prevent it from obscuring the actors' faces). It mysteriously reappears later on. (00:42:45)
Noah Bain: Oh, uh, look, Al, I'm not asking you to spy. I'm just asking you to steal.
Alexander Mundy: Let me get this straight: you want me to steal?