There are multiple descriptions of "The Girl in Red" on this site, but I remember color being used in Schindler's List more than only that one time. Is my mind playing tricks on me? If it isn't, is there a theme to the multiple times that selective color is used?
During the movie the only color is the red coat of the little girl. Specifically so you are aware of it and it is in contrast to everything else. I believe she appears twice, once when 'escaping' and again when you see her in the pile of the dead being burnt.
At the end the film becomes colorized as the descendants of those Schindler saved place stones on his grave.
Small caveat, I always thought that the candle that is lit when the list is first being started was in color as well.