Stranger Things co-stars Millie Bobby Brown and Noah Schnapp appeared to slip up when answering questions about the finale.

One eagle-eyed fan of the show joked that he was "apoplectic" after spotting a little known mistake on the new episodes.

Stranger Things Season 5 corrected a visible production marker after fans spotted the mistake and shared it online.

Millie Bobby Brown couldn't wait for the cold read of the 'Stranger Things' finale, so engaged in a bit of espionage to gain ...

Netflix's 'Stranger Things' appears to have fixed an editing mistake after fans pointed out the production issue ...