I have to agree as well when looking at the movie since the beautiful fluidity of the battles wouldn't have been there had they been wearing heavy armour.
You actually thought the battles were fluid? More like erratic condensed nonsense with a massive load of editing and "choice displays" to make it appear as if the Spartans are omnipotent :rolleyes2

Reminds me of Rambo dodging all those bullets and pin point accurately shooting down a brigade including a tank company with little more then a machine gun and 5 seconds of screen time.

The movie was pretty artistic in terms of the visuals though one aspect I liked.