From an Australian: Mel "I hate the English" Gibson.

Rating: 2/10 (15 August 2006)

This is, indeed, more jingoistic propagandized hogwash. But not from America! From an Australian: Mel "I hate the English" Gibson.
David summed it up quite nicely. I would only add that 1) it has a great cast; and 2) it is based (VERY) loosely on the "exploits" of English dragoon Banastre Tarleton in South Carolina and his skirmishes with Patriot general Frances Marion. That would be where a good story and movie would begin, and this movie ended. Too bad that Mel did not apply some of his devotion to realism ("Passion of the Christ") to a story deserving of it.
After "Braveheart" and this, the next movie will star Mel as a Boer General against the awful colonial Brits, or as Gandhi against the awful colonial Brits, or maybe as de Valera against the awful colonial Brits, or maybe Menachem Begin against the awful colonial Brits -- ad nauseum!
On Another Note
Some comments here have asked "whether it made sense to anyone that a black man would ever fight with a slave state" (South Carolina) for the cause of freedom. Despite stereotypical expectations and historical revisionism, black men did, indeed, fight bravely in the American Revolution on both sides. At the battle of Cowpens in South Carolina, Banastre Tarleton was beaten in a fair fight by Patriot tactical brilliance. During the battle, Lieutenant Colonel William Washington (cousin to George Washington) dueled hand-to-hand with Tarleton and was saved only when his young African-American bugler shot his pistol at a dragoon with raised saber.
African-American soldiers later fought on both sides of the American Civil War, as well.