Oklahoma!, 1955, in TODD-AO used specially rectified prints for certain theatres that had a high projection angle that would severely distort the image on the deeply curved screen.
Out of curiosity, I decided to find out if there was anything other than magenta left in the three dye layers. It took lots of manipulation in the digital realm to bring up the cyan and yellow information but there was a bit of them left. The result was not much like the original brilliance of the CFI prints, but it is surprising that anything at all was left in this 48 year old print.