These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Book of Eli
Anvilicious: Surprisingly averted. Although the whole thing could've easily turned into a Christian tract, it takes enough time to point out that religion/The Bible can just as easily be used for evil purposesas for good purposes. At no point is "save the Bible, save the world" insinuated. Indeed, at the end of the film, the Bible is placed on a shelf at the end right between the Torah and the Koran, among other religious texts and some technical/scientific ones. The bible could've been replaced with virtually any holy text, and the movie would've worked out the same. Thus suggesting that the message is about idealism, those who corrupt ideals for their own ends, and the importance of literacy and education.
Awesome Music: The main theme "Panoramic" by Atticus Ross, that combined with the awesome desolated post-apocalyptic landscape with green clouds, back hair chills guaranteed.
"Funny Aneurysm" Moment: Claudia's blindness has some parallels with Real Life: until recently, Mila Kunis (Solara) used to be blind in one eye due to chronic iritis.
Genius Bonus: For those familiar with Christian tradition. When someone says "God is good", it is common to respond with "All the time". Thus, Carnegie's use of this phrase is insulting on an even deeper level for Eli than one may first perceive.
In the Gospels, Jesus remarks on various occasions that even if Heaven and Earth are destroyed, the Bible will endure. The skies (Heavens) are destroyed and the Earth is a wasteland and yet the Bible still survives.
On the same token, 2nd Corinthians 5:7 gets quoted Walk by faith, not by sight. These words becoming extremely meaningful at the end.
It Was His Sled: A lot of people barely know anything about the movie except for Eli's blindness.
Magnificent Bastard: Despite being the most evil son of a bitch in the movie, Carnegie does have a certain charm to him that makes one see why people are willing to follow him. Being played by Gary Oldman certainly helps.
One-Scene Wonder: The shop keeper who barters with Eli, though he shows up again later for a brief time.
Serial Numbers Filed Off: The beginning of the trailer was enough to (briefly) fool some audience members into thinking that they had made Fallout 3 into a movie. Sadly not the case, but it should be interesting to note that the film's writer, Gary Whitta, Former PC Gamer editor-in-chief, is a self-proclaimed fan of the game. That being said, this may be as close to a Fallout 3 movie as we're ever going to get.