I saw Avatar about three months ago, and Papyrus bothered me. It wasn't until a few days ago that I actually compared the title typeface with Papyrus and noticed they were different.

Papyrus is pink. For some reason, and I'm sure more than a few artists involved with this movie fought it, but Cameron's team used Papyrus as a base, but changes the widths and strokes. This is especially evident in this screenshot:

You can see the "pits" in the letter are identacle, the stroke has just been widened.
I just wish it was something else.