In what must be the longest lapse of time between a film and its sequel, 70-year-old Abel Gance continues his nearly legendary, 1927 historical drama Napoleon with this tale of Napoleon's life after his victories in Italy. The first half of Austerlitz delves into the private life of Napoleon Bonaparte (Pierre Mondy), the prodigal son of Corsica. The supreme commander of the French armed forces goes about his family life and dallies with Josephine (Martine Carol) and mistress Mlle. de Vaudey (Leslie Caron). He occasionally displays bursts of temper that presage some of the macho violence of the battle scenes in the second half of the film, after Napoleon has proclaimed himself Emperor. This sequel shows that Gance has not lost his directorial touch.
~ Eleanor Mannikka, All Movie Guide