Corrected entry: During the withdrawal from Fort Henry, virtually the entire column of Redcoats and civilians, including Colonel Munro, are wiped out by the Indians. In reality, the Indians only attacked the rear of the column, which was mainly comprised of civilians, killing between 70 to 180 people. The majority of the British force was not even attacked and the real Colonel Munro survived.
Corrected entry: When the group is travelling to the fort and come upon the burned out house, the body of the boy is next to the home and under some charred wood, but the body still has skin and the clothes are not burnt.
Corrected entry: In the scene where Daniel Day-Lewis picks off the French/Indians attacking the runner from the top of the fort, the muskets of the time were no way accurate enough for him to pick off 2-3 guys in a row, using various muskets. British soldiers used smooth bore muskets with a range of 100-150 yards until the 1840's. Rifled barrels (and hence, accuracy) didn't come into use until about the 1850's.