Visible crew/equipment: At the end of the movie when the family returns to their burned down home, they find their friends rebuilding it. After they all talk, the camera moves back slowly as the family walks forward. To the right, across the field, you can see a line of cars, trailers and tents for the cast and crew, all parked either on a road or amongst some trees.
Factual error: During his preparation for the final battle Benjamin is making a bullet using a pair of Rapine bullet mold pliers. According to their records the Rapine Mold Company was not established until 1964.
Factual error: The scenes of the Battle of Yorktown are inaccurate. The view from the highest points of Yorktown is not of the ocean or even the Chesapeake Bay - it is of the York River. There would have been no way to see the French navy - they blockaded the entrance to the bay in early September (over 20 miles away), preventing resupply and reinforcement of the British forces. The French ships never fired on Yorktown. All of the artillery fired at Yorktown was land-based.
Revealing mistake: In the close-up on the three French officers directing the bombing of Yorktown, the one on the left is trying to hold a laugh. (02:33:47)
Factual error: French navy officers arriving at Yorktown to bomb the city are wearing tricolor roundels on their hats. This is historically impossible as the three colours blue white red representing France is a result of the French revolution that took place later in 1789. Before the revolution, the flag of France was just white with the symbol of the king.
Factual error: Gabriel claims that Charlston fell to Lord Cornwallis, however the town fell to Sir Henry Clinton, as Benjamin Clinton surrendered it to him after a little over a month long siege.
Continuity mistake: During the final battle scene with Col. Tavington, a close up shot shows Ben Martin holding the last lead ball cast from his son's toy soldiers close to the muzzle of his pistol, about three inches away. The next longer shot of him shows him holding the ball about ten inches from the pistol.
Answer: I think the one you want is 'Unseen' - By Craig Armstrong which is track 2 on the Plunkett and Macleane soundtrack.