I predict this will turn out to be Mr. Gibson's "Waterworld". Apparently he needs to stop thinking of himself as bulletproof, it's time for the fall.
I already know the mythology of the Maya and their predictions of the world ending and being created again several times. The people who can identify with this are few and far between, and they don't go to movies, unlike the millions of radical Christians who The Passion of Christ was sold to. Mel has already had two hurricanes fall on his head and nearly destroy Yucatan; perhaps the Maya gods of the Underworld are trying to tell him something