Character mistake: At the police station when Damien Asante is reading the information on the computer about the hit and run, he says "On February 25, 2015 Christy Markus and her son were struck by a car. The driver kept going." If you look at the computer screen, the date of incident says February 25, 2018. (00:30:00)
Welcome to Hotel del Luna - S1-E1
Continuity mistake: Man-wol pours some stuff to drink into a bowl and then picks it up with her right hand. There is a bandage wrapped around her hand and some of the bandage can be seen dangling freely over her hand in the shot of her picking up the bowl. In the next shot, the piece of bandage dangling from her can't be seen. (00:03:15)
Pride Parade - S5-E3
Factual error: Nandor manages to fly up to space, then loses control and falls back to earth in a fireball as he reenters the atmosphere. But objects reentering the atmosphere only get hot because they're generally travelling at immense speeds, 7-12 kilometers per second. Nandor just floated straight up, then falls straight back down. When Felix Baumgartner parachuted from the edge of space his maximum speed was about 1,300 km/h, and he didn't catch fire.
Factual error: Season 1 Episode 1 Arrival - Doctor Jaax is a Lt. Col. in the US Army. Her BDU blouse has a US flag on the right sleeve. The time period of the show is 1988, as there is a doctor wearing a Dukakis T-shirt. The US Army didn't have a US flag on the BDU uniform until 2005. (00:11:20)
Other mistake: A Mexican pilot based in Ensenada is interviewed. He owns a 1983 Cessna 172 aircraft. When they show it in the air, it is a 2005 Cessna 182 based in San Antonio per the FAA database. A US registry aircraft would not be based in Mexico, owned by a Mexican pilot. (00:11:20)
Continuity mistake: When Nick's mom tells him to show Gypsy around she takes the cigarette away from her lips. A shot later it's back in.
Continuity mistake: When Will Parry visits his grandparents, the grandmother is sitting on the sofa next to Will's grandfather. The grandmother's position keeps changing from sitting right next to him to being further apart.
Most Likely to Go Your Way (And I'll Go Mine) - S1-E5
Continuity mistake: A group of people are standing before a door with full glass inserts. It has a thought processor for access. Once the group defeats the processor, they open the doors. But the doors are now solid wood, not with a glass insert. (00:29:20)
Revealing mistake: The ghosts often cast shadows.
Suggested correction: You can also hear their footsteps. But I'm not sure this is a mistake, just their own perception. Within the ghostly world they appear and act just like they would in life.
The ghosts are manifestations of energy, therefore they have no physical body to block light. Even if in the ghostly world, physics are physics and there should be no shadows.
Chaos Is the New Cocaine - S1-E3
Continuity mistake: Alex opens a bottle of wine. She takes the cork off the corkscrew with both hands and the bottle of wine spins from not showing the label to showing it. (00:37:55)
Chapter Four: Housechilling Party - S1-E4
Revealing mistake: When Ryan's iPhone vibrates with a text message from his mom, the text message is timed 5 hours before the time on the lock screen. An immediate message would normally indicate the time received as "now." (00:06:45)
Picture's Up - S1-E5
Continuity mistake: When the detective goes to retrieve the water bottle that Zach discards into the recycle bin, he picks it up with a napkin by the top. In the next shot, he is placing the bottle in a plastic bag top first, holding the bottle with the napkin by the bottom. (00:42:00)
Continuity mistake: When Vincent is showing the delivery man his basement to show him the wooden cube isn't there, the delivery man's ID tag is positioned so that the front side is facing outwards. In the next shot, the ID tag has suddenly flipped around. (00:11:20)
Continuity mistake: The mayor Bobby and Keri are talking in a restaurant. Flashback 5 years - the same man sits at two different tables in two different sequences. (00:13:35)
Revealing mistake: The main character gets into a short wrestling match on the landing of a star well. The bad guy fires a shot over the main character's shoulder, which should have hit the wall he was leaning against, but no damage is shown on the wall. (00:05:40)