The Arrow That Is Not Aimed - S3-E13
Revealing mistake: Gallagher, the Tourist Shop Owner has been fished by Magnum but, as one of the doc workers says, he's been "Down there long time, bro, pretty bad shape" and he is "in intensive care, unconscious" later in the episode. However, just before the camera cuts away he opens his eyes. (00:35:10)
The Arrow That Is Not Aimed - S3-E13
Revealing mistake: Facing an angry samurai swinging his sword John Belushi-style, Gallagher, the Tourist Shop Owner, wisely decides to hightail. When he shuts the door and when the angry Japanese touches said door to chase him, the whole wall shifts, revealing to be a set. (00:33:10)
The Arrow That Is Not Aimed - S3-E13
Revealing mistake: The Yakuza boss contacted by Rick has an amputated pinky finger. In theory, because it's easy to spot the real finger bent and tucked in the shadow. (00:21:00)
The Arrow That Is Not Aimed - S3-E13
Revealing mistake: It is quite evident that Mako's sword does not touch the candle but smacks the table a few inches to the left. (00:17:05)