Rob beat me to it. But the fact that he's on board with this makes him a little less annoying. J/K
Seriously, The Seven Pillars of Wisdom is an amazing book. There are two critical chapters. One discusses the three dominant levantine religious traditions, and the processes that unite their origins. The other takes the whole east coast of the Mediterranean from the southern border of Turkey to the Sinai, and breaks it down into who lived there, their ethnic roots, what they believed, who they got along with, who they fought/killed on sight, and the ongoing economic processes that affected them all. Just these are worth the read.
The movie is a fantastic piece of cinematography. It steamrolled the Oscars in its year, for good reason. But it is not an accurate portrayal of the book. The transformation of Arab characters into jingoistic caricatures treads up against the line of being offensive.
Other books I highly recommend:
How we got to be this way:
American Nations: A History of the Eleven Rival Regional Cultures of North America
Suicide of the West: An Essay on the Meaning and Destiny of Liberalism
And a revisiting of the theme, fifty years down the road:
The Strange Death of Europe: Immigration, Identity, Islam