Revealing mistake: When Syd's Dad rescues her in the car park, he starts shooting at the other car. After firing one shot the slide of his gun locks back (indicating it's out of bullets), but when the angle changes he carries on firing with no problems. (00:43:20)
Revealing mistake: When Sydney and her father go into the office to talk, the office doors begin to close before Sydney uses the remote to close them. (00:13:00)
Factual error: In the episode where Sydney is supposed to be in Helsinki, there are visible skyscrapers in the background. There are no skyscrapers in Helsinki.
Sloane: Marshall, would you please go back to work?
Agent Marshall Flinkman: Just to clarify, I'm not being fired?
Sloane: Back to work means not fired.
Trivia: Throughout the show, the number 47 appears many times. There are multiple room 47's (where Syd found the Circumference in season 1 and the room in her memories from season 3, among others.), there are 47 Rambaldi artifacts, and Page 47 of the Rambaldi manuscript was the page that had Sydney's picture on it. Also the pagers flash 47911 when they get called into the office.
Doppelganger - S1-E5
Question: When discussing the bomb plot, there's something odd with the audio. When Sloane's talking, at two points he says "UCO", but it's obviously been dubbed over - the shot's from behind but the tone is different. Arguably just post-production looping, but because the pitch is so noticeably different I'm assuming they mentioned some organisation they couldn't refer to, so changed it. Can't be the UN, as they mention that earlier in the scene. Anyone know why that was changed? (00:35:05)
Chosen answer: It does sound overdubbed, but there was no change in the organization. UCO is United Commission Organization. There are signs when Patel is coming that say UCO so obviously it wasn't changed.