Waterloo (I) (1970)
In 1812, after 15 years of victory, he met with disaster in the Russian Campaign. By 1813, defeated by the combined forces of Austria, Russia, Prussia and England at Leipzig, Napoleon was driven to the very gates of Paris - there to await his destiny.
General Sir Thomas PIcton (Jack Hawkins) is correctly shown dressed in a civilian coat and a top hat. He'd travelled in hat. He had travelled in haste to reach the army and had arrived ahead of most of his luggage - including his uniforms.