In Sandra Bullock’s new movie, The Blind Side, her character Leigh Anne Touhy has a scene where she has just fixed up the guest bedroom for Michael Oher, the 17-year old black young man her family has taken in off the street. There is just a hint of a look of self-satisfaction on her face — she’s doing a “good deed.” As Michael looks around the room, slack-jawed, he says, “I never had one before.”

“A bedroom of your own?” Leigh Anne asks, expecting a “yes,” thus confirming her good deed.

“A bed,” Michael replies, and you see in her face that Leigh Anne’s world has just been turned upside down.