Loved that movie!
A few questions remain:

1)Could anyone as efficiently duck away from arrows behind shields as did the Spartans fighting in the shade?

2)Did anyone actually use that clever Push-n-Pull tactic used by the Spartan phalanx? (to the cliffs!) Or that wedge against cavalry?
(seems pretty effective, anyway only possible under the pretext of confined spaces)

3)Could partner-fighting (hetaireia!) work like that?

4)Can anyone give me the number of their personal trainer?