When LaRoche goes to Schine's house, he tells Schine's daughter in French: "Je m'appelle LaRoche, comme une petite roche qui va bientôt baiser ton père par derrière." This translates as: "My name is LaRoche, like a little rock who will soon screw your father from behind." Then, he tells her that in English, it means: "My name is LaRoche, it means a rock. Like the little rocks rolling down a river."
The movie was released approximately two months after the 17 September 2005 derailment of a Metra commuter train that killed two people and injured 80. Although no train derails in the movie, Metra tried unsuccessfully to get the title changed.
Metra, which operates the regional train system in Chicago, was paid $30,000 for advice and the use of some trains and stations for the movie.
Melissa George played the nanny to Jennifer Aniston's on-screen daughter, Emma, in Friends.