Goofs

When Philippe looks up at the moon through his cell window, the moon is just out of his sight. However, in the next shot, moonlight is shining directly on his face.

After the Jesuit is wounded, Christine leaves with Raoul, but exactly in the following shot, she appears behind Louis.

Christine's earrings and necklace during dinner scene, are similar but not the same in the next scene in the bedroom.

During the second bed scene between Louis and Christine, the position of the candles between the first and second full shot are different.

When D'Artagnan arrived in the throne room immediately after realizing that something is awry, he nods to the King on his throne while standing on the far right of the King. When the camera shoots to Louis nodding back, he nods slightly to his left, even though D'Artagnan was just standing to the King's far right.

King Louis XIV is portrayed as a bachelor, but in reality he was married twice. During 1662, the year in which this film is set, he was still married to his first wife, Queen Maria Theresa of Spain, who died in 1683.

In 1662, at the setting of this story, Queen Anne of Austria was in here early sixties, while the actress who portrays her here, Anne Parillaud, was but in her mid to late thirties at the time of filming, and appears here no older than forty five.

It's been pointed out that, since the twin brothers were not really fathered by Louis XIII, neither would have a claim to the throne and Louis would not be king to begin with. However, since the origins of the twins' birth was clearly unknown to any (excepting the real parents) in the film, including the twins themselves, this is highly irrelevant.

Many actors, including but not limited to Leonardo as Louis, speak with non French accents despite the movie taking place in Paris, France and all characters being French. But to be truly accurate they should all be speaking the French of that time, and the lack of accents is no more a goof than that.

When D'Artagnan is dealing with the angry peasants about the spoiled food, and the apples are thrown, the second apple that D'Artagnan "stabs in the air" is visible on his sword before the slow-motion shot.

At the beginning of the escape into the sewers after kidnapping Louis, Porthos attempts to slow their pursuers down. When he throws the second Musketeer guard against a stone wall it shakes - showing it is not made of stone and part of the scenery.

In the 20-something King Louis XIV's bedroom we can see a portrait of Louis XIV when he was about 50.

Though Louis XIV is in his twenties in the film, there is a bronze statue of him on a horse that was sculpted when he was much older. The statue now stands in the courtyard of Versailles.

Set in the 1660s, but involves the war between France and Holland, which lasted 1672-1678.

The Palace of Versailles is shown as the court of Louis XIV as a young man, its gardens and fountains operational and all buildings complete. However, Versailles was until construction for much of the reign of Louis XIV, and although visiting often, the palace was inhabitable, with most courtiers been forced to sleep in the open. Louis XIV's official residence was the Tuileries Palace, and only moved to Versailles when he was in his fifties.

The opening shot of Notre Dame cathedral shows modifications made to the spire by Violet-le-Duc in the late 18th century.

At the beginning of the movie, we clearly see King Louis XIV inside and outside of the castle Vaux Le Vicomte. Louis XIV never lived in this castle, as it belonged to Nicolas Fouquet. Vaux Le Vicomte became a source of inspiration for the Versailles castle. Versailles was the living place of Louis XIV when he was old and is shown in the movie. Therefore, all castle sets are wrong, since the young Louis XIV lived mostly in the Louvre/Tuileries palace, in the center of Paris, not shown in the movie.

After all the years that the twin has worn the mask, his face would be covered in sores from the inability to wash.

The pronunciation of 'Athos' varies throughout the movie. Not only do different characters say his name differently, the same character - Philippe - pronounces it differently at different points in the movie.