Six Winter Days by Kevin Montgomery

Battle of Princeton Jan 3, 1777

Washington at the the Battle of Princeton. This scene is in the script.
The Screenwriter at the Trenton Bridge

The Quaker Road Modern Day
The screenwriter on the Assunpink Bridge, Second Battle of Trenton.     The Quaker Road winds strategically through the plot                                                                     

HENRY KNOX
Just think, General, in 200 years, the Army Corps of Engineers will turn this raging creek into a tiny ditch that the British could cross in five minutes.

WASHINGTON
Yes, I know, Henry. Get some sleep.
 

That's not in the script.