Aside from instances where the movie is the battle (waterloo, gettysburg, etc.)...

The battle of gaugamela is featured in the film

No, it isn't. A mix of all the main battles of the campaign is. It had a nice soundtrack though, so it evens out.

It's clearly Gaugamela and pretty accurately depicts it to boot. Name one thing about it lifted from Issus.

Master and commander, obviously

Bondarchuk "war and peace"
youtube.com/watch?v=RLovWXcjiZI
youtube.com/watch?v=lkk_FQPR9Qc
youtube.com/watch?v=kcKFJvZts8Q

The Last of the Mohicans have awesome siege scene, must to watch.
youtube.com/watch?v=gv5VK6WIumU

Soviet film "Heroes of shipka" have some good battle scenes.
youtu.be/vixO6P0EMdU?t=1h2m11s

That scene shows at most 8 men at a time fighting, it's hardly a full battle scene. The focus is more on Pullo disobeying orders which is why he's sent to be killed later

Check out BBC's Copenhagen movie. The one with Daniel Craig and Stephen Rea

Barry Lyndon has pretty accurate warfare, they even take cover in forts when they're available instead of everyone always fighting in a line

wrong

Rome (HBO) was never about the battles so I wasn't that upset. Although I was pretty disappointed how they handled Pharsalus, although it seems like they learned their lesson and did a pretty cool-looking Philippi.