Restoring CINERAMA films:

Some Cinerama films that are still complete but badly discolored can be restored by making a b/w print of the affected scenes loading them into the computer and then colorizing the film.
This would be better then trying to restore one panel of the three, and then have trouble matching the colors. It would indeed be an expensive and time consuming process, but if this is the only way to restore the films that may be lost forever then it would be well worth it.
It may even be possible to farm out  key frames or parts of a films picture to computers on the net for mass processing power, after processing the information would be automatically collected be the main computer system for eventual assembly into a complete picture. This is similar to the way home computers are used at nighttime to help search for SETI  type information.