Yeah, I remember my reactions to the Fathom DCP of the Fellowship EE being along the lines of "This is different from the DVD, but feels strangely familiar...like I saw this color timing in theaters in 2001." I don't even remember noticing a green tint (either my eyes got used to it, or maybe the DCP master doesn't have as strong a tint?)

This could be another case of "we get used to the home video grading and forget how it looked in theaters, then complain that the BD grading is revisionist, when it's actually closer to the theatrical than we give it credit" (see: every James Cameron remaster)

And 35mm prints (especially LPP) can have a slight yellow-green tint in general, too. I've seem film cells, they have that yellow green look. White is almost never pure white in 35mm, there is always some slight color to it (usually yellow or yellow-green). Is it due to the film base not being 100% clear, or is it due to the chemistry of the developing process?

If only we could have gotten our hands on the 35mm prints that were for sale a while back. I'd love a regrade based on the actual print color schemes. (Though obviously we'd have to wing it for the extended stuff - and now I wonder how the heck the limited 35mm print runs of FOTR EE and TTT EE looked...)