In Season 2, Episode 2 of Big Mouth ("What Is It About Boobs?"), an evil version of Missy comes out of the mirror: Is this a reference to the movie Us (2019)
beneath-the-planet-of-the-apes
call-me-by-your-name
the-guest
jawbreaker
flash-forward
2010-the-year-we-make-contact
fear-and-loathing-in-las-vegas
the-social-network
batman-hush
mystery-of-a-hansom-cab
the-rape-of-the-vampire
dallas
home-alone-2-lost-in-new-york
blochin
terms-of-endearment
enemy-of-the-state
the-wolf-of-wall-street
heavyweights
girls-club
secondhand-lions
tmnt-2-secret-of-the-ooze
the-bureau
beetlejuice
russian-doll
the-ninth-gate
inside-llewyn-davis
doubt
fatal-attraction
how-to-rob-a-bank
dark-universe