Waterloo

From wikipedia:
Waterloo (Russian: Ватерлоо) is a 1970 Soviet-Italian film directed by Sergei Bondarchuk and produced by Dino De Laurentiis. It depicts the story of the preliminary events and the Battle of Waterloo, and is famous for its lavish battle scenes.
It stars Rod Steiger (portraying Napoleon Bonaparte) and Christopher Plummer (portraying the Duke of Wellington) with a cameo by Orson Welles (Louis XVIII of France).

The film includes some 15,000 Soviet foot soldiers and 2,000 cavalrymen as extras (“it was said that, during its making, director Sergei Bondarchuk was in command of the seventh largest army in the world”). Fifty circus stunt riders were used to perform the dangerous horse falls. These numbers brought an epic quality to the battle scenes.

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The Battle Of Austerlitz

From the kultur.com website:

This stunning program features dramatized reconstructions and ‘eye-witness’ accounts of Napoleon Bonaparte’s famous battle, plus Russian archive film footage from Bunderchuck’s masterpiece War and Peace. With 3D graphic mapping techniques and delightful period imagery, ‘The Battle of Austerlitz’ is a memorable account of a bloody battle which had a profound effect on the course of European history.

Other Napoleon related DVDs
The Napoleonic Wars
The Battle Of Trafalgar
The Battle Of Austerlitz
The Battle Of Borodino
Napoleon’s Road to Moscow
The Battle of Waterloo