Jordan Peele gave the cast eleven horror films to watch so they would have "a shared language" when filming: Jaws (1975), Dead Again (1991), The Shining (1980), The Babadook (2014), It Follows (2014), A Tale of Two Sisters (2003), The Birds (1963), Funny Games (1997), Martyrs (2008), Let the Right One In (2008), and The Sixth Sense (1999).
Adelaide Wilson:
They look exactly like us. They think like us. They know where we are. We need to move and keep moving. They won't stop until they kill us... or we kill them.
After Abraham tries on Gabe's glasses, he takes them off but we never see Gabe get them back. Gabe is wearing them in the next scene.
Before the movie begins there is an on-screen message that reads:
There are thousands of miles of tunnels beneath the continental United States...
Abandoned subway systems, unused service routes, and deserted mine shafts...
Many have no known purpose at all.
English
$20,000,000 (estimated)
$71,117,625 24 March 2019
$175,084,580
$255,184,580