Ignoring the obvious and superficial Christian emphasis of the underlying plot, this film superbly chronicles one man's pilgrimage to take the only surviving copy of the bible to the last bastion of civilisation (in America, that is) surrounded by the barbaric degeneration of the few survivors of the apocalyptic event. Interestingly, there are undertones of anti-Christianity running through the plot; all of the bibles, bar one, were destroyed after the event that, presumably, Christian fundamentalism had somehow caused; and Gary Oldman's character`s desperate attempt to obtain the bible as a means to control the populace (opium for the masses, anybody?).
The film is dark, grim and unrelenting, shot with almost monochrome harshness. Denzel Washington's performance was brilliant as was Gary Oldman's (has he ever played a goodie?) and the cameo appearances of Frances de la Tour and Michael Gambon were delightful. The storyline was engaging and, without the usual Hollywood formulaic sloppy bits, perfectly matched the moody cinematography.
All-in-all, an excellent film superbly cast and peppered with just enough mysticism & symbolism - a worthy addition to the post-apocalyptic movie genre. The only criticism may be that every character was a bit of a caricature and that, really, the genre hasn't evolved much beyond Thunderdome.