Elizabeth Olsen did not know the ending of the film until she watched it for the first time at the New York premiere. "I've never been more shocked and surprised by an ending since maybe like The Sixth Sense," said Olsen. "No one spoiled it for me. No one hinted at it for me. And I got to experience it with just a blank canvas."
Josh Brolin, Elizabeth Olsen & Samuel L Jackson do have a calibration in the Marvel Cinematic Universe. Thanos (Brolin), Scarlet Witch (Olsen) & Nick Fury (Jackson).
Joe turns on the TV and as he surf the channels a fragment of Xena: Warrior Princess is seen, but the year is 1993 and Xena did not start on TV until late 1995.
When Joe sneaks into Edwina Burke's (Evergreen Headmistress) home while she's talking to Marie, he pulls out a yearbook. He looks into the yearbook and the name says "Adrian Pryce". Then when the shot zooms in, it says "Adrian Doyle Pryce". When Joe and Marie return back to the motel, Marie takes a picture of the yearbook photo where it now returns back to just "Adrian Pryce".