Trivia: In the scene where Warren Schmidt falls asleep in the bath, his posture is exactly like Marat in the painting 'Death of Marat', by J.L. David. You can take a look at the original at http://www.artchive.com/artchive/D/david/marat.jpg.html
When Warren's daughter, Jeannie, fixes him a sandwich for lunch, while on camera, Warren is seen taking two bites from the sandwich. The sandwich is shown with a bite missing and then appears later to have been uneaten.