Tony is watching the film in bed waiting for Sarah, and says it is just a western, and in the background is heard "I just can't quit you" being spoken by Jack Twist.
At dinner with their friends, Michael is complaining that it took two years to drag Steve out of the closet, but now he is all the way back in Narnia, which is a reference to the second part of the title, "wardrobe," another word for closet.