Goofs

Crossbow bolts were stabilized by vanes made from parchment, wood or even metal. Feathers, as depicted in the film, were generally not used. Also, crossbows usually took 30 to 60 seconds to reload and were thus exclusively used as sniper weapons.

The crossbows shown made use of steel, while in fact the bows at the time were made from wood, or they were glued composite bows (animal horn and wood).

The imperial eagle first appeared on the Habsburg coat of arms in 1325, at least 16 years after the events shown in the film. Until 1600, the coat of arms usually displayed a lion.

The various castles are shown in their modern forms. Specifically, they have a large number of windows. These were all cut several centuries after the period in which the story is set, when castles were no longer required to be fortresses.

One of the characters quotes Brutus's "There is a tide in the affairs of man..." from Shakespeare's Julius Caesar, written nearly 300 years after the film is set.

At the meeting in Altdorf, the rebels say "Unite the cantons. Bring the Swiss together." First, the "canton" (for Swiss state, or member of the Swiss confederation) is a term that first appeared in the late 15th century. Secondly, only after the Battle of Sempach (1386) the term "Swiss" was coined - which refers to the Helvetic Confederation. Before that, "Swiss" only meant Schwyz, one of the three original members of the Confederation.

During the final battle, the Habsburg troops use asymmetrical shields, which first appeared in the late 15th century - and they wear halberds from the 17th century. Halberds were two-handed weapons; a soldier would never carry a shield and a halberd at the same time.

Tells wife looks like of North African heritage, but would have been rather a blond, pale Swiss girl.