Corrected entry: Mia called 911 to request an ambulance yet never gave her location. They were unable to trace calls/no caller ID that long ago.
Corrected entry: The movie is set in 1967. When the husband comes out of the neighbor's house he tells Mia to call 911. 911 was not used as the national emergency number until 1968 (the first ever call using it was February 16, 1968). California only adopted 911 in 1972.
Correction: The husband John asks the wife to "call an ambulance" not "911" when he exits the neighbours' house.
But the operator answers "911 operator".
Corrected entry: When Mia is entering her apartment building and the baby is in the pram behind her, she drops her keys and the pram rolls into the road. The pram gets hit by a vehicle and suddenly the baby is in Mia's arms. She wasn't holding it before - it was in the pram.
Correction: The angle of the camera is to make you think the baby was in the carriage when it was in her arms the entire time. Misleading, yes, but not a mistake.
Correction: She states the address "307 Gardener Road" when requesting an ambulance.