- Nicole Mary Kidman did not participate in the Broadway premiere of "Rabbit Hole; Apoleia" in the drama version . She hadn't even watched the drama before she decided to make the film version of "Rabbit Hole; Apoleia".
- According to the "New York Times" report, Sam Remy once wanted to direct the film, but because of preparations for the 2012 "New Spider-Man", he had to give up "Rabbit Hole; Apoleia".
- The film took only 28 days to shoot, and the production cost was US$10 million. For a movie with big stars like Kidman and Eckhart, such a low cost is unimaginable. In fact, Kidman, Mitchell and Eckhart participated in the filming of the film almost without pay, and Eckhart even paid part of the production costs out of his own pocket.
- All the films were only shot in New York.
- Choosing Aaron Eckhart as the leading actor was specially appointed by Nicole Mary Kidman.
- The film is the first film starring and producer Nicole Mary Kidman.
- The film's starring Nicole Mary Kidman and Aaron Eckhart have both starred in "Batman" movies.
- Before Anton Sanko, two other composers were considered by the crew, but Owen Parret was unable to compose for the film due to a schedule conflict, and the music written by Abel Korzenovsky did not meet the requirements. At the request of the director, he was expelled from the crew.
Rabbit Hole behind the scenes gags
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[last lines]
Becca: [voice-over] And then what?
Howie: [voice-over] I don't know... Something though.
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Nat: You know, Becca, when your brother died, I found the church very helpful.
Becca: I know. I know you did, but that's you. That's not me, and Danny... Danny isn't Arthur.
Nat: You know, I brought you to church every Sunday.
Becca: Let's not start this again, okay, Mom? I'm just... I'm just calling about the cake.
Nat: You're not right about everything, you know? What if there is a God?
Becca: Then I'd say he's a sadistic prick.
Nat: All right, Becca, that's enough.
Becca: "Worship me and I'll treat you like shit." No wonder you like him. He sounds just like Dad.