Goofs

During the first duel, right before Francesca is unmasked, she goes from hat on, to hat fallen off, to hat back on within the space of a second.

When Casanova is swatting a tassel, the rate at which it swings changes.

It is impossible to ride horse cart in Venice outside of the San Marco square.

For a split second when Casanova jumps from one building to another you can see the harness.

When Francesca Bruni jumps from the gallows to the horse, the stunt double is wearing a black wig, but Francesca's hair is auburn brown.

The business with the hot air balloon is a minor anachronism. The first manned flight of such a vehicle was by the Montgolfier brothers in 1783, just 30 years after the film's setting.

In one long shot of Venice at sunset, the viewer can clearly see contrails in the sky caused by passing jet planes.

Water can be seen flowing from a bilge pump on Paprizzio's sailboat when sailing into the port of Venice.

Casanova is a story set in 1762 Venice. But, when Casanova sees a virgin being carried around and say: "Lupo, we have had a vision!", the statue of the Virgin being carried around is the Virgin of Lourdes; which corresponds to the visions of Bernadette Soubirous in 1858".

The "university auditorium" where Casanova first sees Francesca Bruni is not a building in Venice, but the Teatro Olimpico in Vicenza, a town approx. 45 minutes west of Venice.

The character name Victoria uses the Spanish or Latin spelling, rather than the Italian spelling Vittoria.