There's a very informative short film out there called Fitna, produced by Geert Wilders; it offers some disturbing insights into the violent and brutal nature of Islam. Unfortunately, you mibht have trouble finding it, because Network Solutions shut down the first site set up for internet users to view the film in response to threats of Muslim violence if they allowed it to be run. So Liveleak posted it there for a while, but they took it down because of threats of Muslim violence if they allowed it to be viewed.
Thankfully, there's this thing called Bittorrent, and so far the Muslims threatening violence haven't figured out exactly who to threaten in order to shut it down.
Don't overlook the irony here: the response to the existence of Fitna proves exactly the point that Wilders was making.