Technicolor - rhyme or reason
The list of which scenes were in technicolor looks like one of those "which doesn't belong" games.
1. Jesus is born and wise men give gifts
2. Parade for Ben-Hur and Ben-Hur leaves Arrius
3. Women talking about Jesus and Jesus preaches
4. Sinner saved from stoning by Jesus
5. Palm Sunday
6. Last Supper
7. Condemned by Pilate
8. Crucifixion
9. Ben-Hur after the crucifixion
I don't see how #2 fits. I was thinking they colorized the scenes with Jesus, but they did not colorize Jesus giving Ben-Hur water from the well or Jesus marching to the crucifixion. It's also possible they only colorized scenes with Gospel quotations attached, but they did colorize the parade for Ben-Hur which has nothing to do with scripture at all. It's as if there is ALMOST a method to the madness, but not quite. I suppose the answer is "they colorized all scenes accompanied by a Gospel quotation, the final scene because it is the ending, and the parade because they thought it would look cool."