Factual error: When Ney comes to make his report to Napoleon after Quatre-bras(Where Ney engaged the Allied army), he throws a captured British flag down before Napoleon. This flag is a green Regimental flag, with a sphinx insignia - But the only British flag captured at Quatre-bras was the Kings Colors of the 69th, which would be a great Union Flag with '69' in gold leaves.
Suggested correction: Might be worth while looking up a great painting called "The Last Trophies" - this shows 5 Infantry Colours.