Other mistake: In the beginning when Kali and her gang are running from the police in Pittsburgh and she "collapses" the tunnel, her 008 tattoo is shown this way so we can read it as such, but it should in fact be read 800 to be the correct way. (00:03:15)
Chapter Seven: The Massacre at Hawkins Lab - S4-E7
Other mistake: When Hooper was trying to light the alcohol-soaked rag to make a torch, his lighter wasn't working at first. He finally got a flame at the last minute. However, the sparks alone should have been enough to ignite the flammable rag. (01:00:33 - 01:02:03)
Other mistake: When Will is in the hospital, talking about being frozen, they cut to the hallway and the lights on the suspended ceiling are 2' x 4' LED lights that didn't come out until the 2000s.
Suggested correction: There is nothing to indicate they are LED lights. They appear to be translucent panels illuminated by fluorescent lights.
