300

This movie is pretty impressive; a lot of use of desaturated color and slow motion to make it look like the Frank Miller graphic novel. It helps to know the story a bit, but it does have those classic lines:

"Come back with your shield, or on it."
and these, later on:
"Our Persian arrows will blot out the sun."
"Then we Spartans will fight in the shade."

Rico says you gotta have balls to make a comeback like that...