Recently I watched 300 - The movie starring Gerard Butler and is directed by Zack Snyder.

The main attraction of this film is the usage of computer graphics.. Almost all scenes are shot with blue screen in background and then Computer Graphics effects are added to the movie. The war scenes are immersive and it is better if you watch on a Dolby Surround sound system or in an Imax theater.
The warm colour temperature gives a unique effect to the movie.

Details from Yahoo! Movies:

In the ancient Battle of Thermopylae, King Leonidas and 300 Spartans fought to the death against Xerxes and his massive Persian army. Facing insurmountable odds, their valor and sacrifice inspire all of Greece to unite against their Persian enemy, drawing a line in the sand for democracy.

Overall I can say.. It is a must watch for War genre movie lovers. Also for those whose admire the creativity done through Computer..