Cathy Seipp has a nice piece on watching old movies with her daughter. When my son was little, I could never get him to watch old black and white movies with me. Color, perhaps. Black and white, never.
In fact, he thought that movies turned from color to black and white with age. I discovered this one day when we were getting ready to out someplace and my son was engrossed by some movie on TV. As I urged him to get his shoes on and get in the car, he begged me to let him finish watching the movie. "Please Mom, I never saw it before and who knows when it's going to be on again. I want to see it before it turns black and white!"