Watching Casablanca, and I've realized something. Close-ups of Bogart appear to have high contrast, sharp features. And close-ups of Bergman are softer, lower contrast, almost fuzzy.
This is certainly not the only film I've seen it in. Most black and white films have this disparity. I want to say I've seen it in color films too, but none come to mind.
My question, is this achieved solely through make-up, or are filters used on the camera?