In the beginning of the movie, Tom is getting his little boy out of the bathtub. He sticks the towel down into the water to grab the boy, but when he brings the boy out and is drying him off, the towel is mysteriously dry.
When Tom breaks the window with a stone a Virgin Mary statue is visible behind it. The glass falls to pieces and the statue collapses to the floor. When the camera comes back to the window, Virgin Mary is still standing there, behind the broken window, as nothing has happened.
At the beginning of the movie. Lisa tells Tom that his baby will be born in June, and will be a Gemini, like the Scottish chick in the band Garbage. Lisa is referring to Shirley Manson. Manson was actually born in August and is a Virgo.
When Kevin Bacon's character is digging in the back yard and has to move the water hose, he turns the faucet in the on direction and then unhooks it. When he moves it to the other faucet, he turns the faucet in the off direction then tries to turn it on.