Starring: Winona Ryder, David Harbour, Millie Bobby Brown, Finn Wolfhard, Dacre Montgomery
Chapter Seven: The Bathtub - S1-E7
Continuity mistake: When Mike and Lucas notice a van pulling out of a side street and coming to them, the sky is blue, but in the next shot, it is orange. (00:04:03)
Chapter Seven: The Bathtub - S1-E7
Continuity mistake: Steve has a Coke can he holds to his face. The can moves around each time the shot cuts.
Chapter Eight: The Battle of Starcourt - S3-E8
Factual error: The value of Planck's constant used in the show, 6.62607004 is the value that was measured in 2014. The value that was in use in 1985 was 6.626176. The value was updated again in 2018, to 6.62607015.
Mike Wheeler: Mom, if anyone asks where I am, I've left the country.
Chapter Four: The Body - S1-E4
Question: Where did the body of Will come from? And why was it stuffed full of cotton?
Answer: The body was fake, made by the scientists at Hawkins Lab in an attempt to cover up his disappearance and the existence of the Upside Down.