Trivia: Eva Amurri and Susan Sarandon who play the young and older Mary McGarricle are real life mother and daughter.
Trivia: Gemma Arterton, who plays Clara, is only eight years older than Saoirse Ronan, who plays her daughter Eleanor.
Trivia: A point in the score from this, by Joe Kraemer, inspired The Batman's signature motif by Michael Giacchino. After the phone call between Jack and Helen when he warns her potentially not to trust her father, he's driving across a bridge and the music is almost identical to the "bom...bombom...bom" theme from The Batman.
Trivia: Although Jean-Claude Van Damme and Dolph Lundgren share top billing, they have no scenes together in the film.
