David (Patrick Wilson) is married to Amanda (Marika Dominczyk) in the movie. In real life he is actually married to Dagmara Dominczyk who plays Stacy. Scott Foley is married to Marika.
When Amanda (Marika Dominczyk) is in bed talking on the phone to David (Patrick Wilson) she is reading the book "The Lullaby of Polish Girls". This book was written by Wilson's wife in real life, Dagmara Dominczyk.
Dagmara Dominczyk, Marika Dominczyk, and Veronika Dominczyk are all sisters.
Keller Foley is the son of Marika Dominczyk and Scott Foley.
Kalin Wilson is the son of Dagmara Dominczyk and Patrick Wilson.
Ava Carpinello is the daughter of Amy Acker and James Carpinello.