There is a still a color correction process that happens even if a DI was not done. Films have been color timed for decades - There are basically two parts to color correction; was is truly correction - to meet the needs of a broadcast deliverable and matching shots from scene to scene due to different cameras, different stock different time of day, compensate for lights that change color temps over time, etc. The second one is the creative look and feel such as the "greenish" Matrix look or whatever.
Michael
Michael


