Dudgeon crosses the ankles of his father's body. In a subsequent shot, the ankles are seen uncrossed and then crossed again as Dudgeon leaves.
When the British troops are bogged down in the forest, due to felled trees, Gen. Burgoyne calls out to Maj. Swindon. When Swindon presents himself, he salutes with his left hand.
At the fallen tree roadblock the soldiers working to clear the trees are just whacking away at various points on the tree with no obvious knowledge of how to use an axe.
Several times while going through the forest, the British refer to "snipers." However, the term sniper didn't come into being until about 40 years after the American Revolutionary War. The term came into usage in 1824, while the war ended in 1783.
As the British troops are clearing the felled trees in the forest, General Burgoyne summons Swindon to his carriage. As Swindon presents himself, he inexplicably salutes with his left hand.