Spielberg did the black-and-white route for SCHINDLER for artistic reasons, and also possibly to make its horrific violence just slightly more variable by not drowning us in crimson blood. SAVING PRIVATE RYAN of course was totally in color. It makes you wonder how far it would have financially grossed without the color, since the only major black-and-white film since 1965 just might be SIN CITY.
Colorizing the black-and-white classics went on far too long from 1985 to the mid-nineties. So I basically threw that color-insult in to add to the 3-D aspect without truly thinking about it. A mini-mental cookie of sorts. ROBIN HOOD from 1939 looks colorized (in a good way), but it always was originally so.