This macro attempts to make footage look like it was shot with older film processes.  This is based on the technicolor work done for Aviator though it transformed into a much more empirically based approach and less of a technical approach.

There is the 3 color process as well as a 2 color process.  A ColorMixer property mixes between these two processes.  This mixing isn't based on anything but does give some rather good looks.  There is also yellow dye and black level controls.