Goofs

The spell book in the castle changes position on the table.

When the blob of mud chases Sasha, the extras in the background disappear and re-appear several times.

When Cavaldi is approached the bed where Will and the twins are sleeping, the twin in Will's right arm is sleeping on her left side, almost completely on her stomach. In the next frame, when she reacts to presence by looks up at Cavaldi, she is lying flat on her back.

In the forest of Marbaden, when Delatombe's valet pours his wine, the wine in the carafe is red, but the wine in Delatombe's glass is white.

At the beginning of the movie, Will rides a gray Andalusian. When he and Jacob ride into the forest with the trapper, Will rides a fat gray mule. Jacob is on the same horse, with no explanation of why Will changed horses.

Angelika hisses about "a Christian king" as if this is unusual. The movie takes place in the early 1800s. Kings in Germany had been Christian for a thousand years, since the time of Charlemagne.

The French Calvary are Cuirassier-large men riding large horses wearing breast and sometimes back plates armed with straight sword, pistols and sometimes carbines. Only light Calvary (Uhlans/Lanciers) carried lances during the Napoleonic era.

The term "Bingo" wasn't used until after 1929.

Cavaldi says the brothers sell "the oil of the snake," a popular metaphor first used in America some decades later. It can be assumed that this is a modernized "translation" of what he really said.

Gioachino Rossini's "La Gazza Ladra/The Thieving Magpie" and Johannes Brahms' Cradle Lullaby are heard in the film, set in 1811. "La Gazza Ladra" was composed in 1817, and Brahms wasn't born until 1833. The songs are for our benefit, and are not heard by the characters.

When Jake launches himself toward the tower, the stretch on his trousers and shirt as he falls reveal where the wires are attached.

When Jacob flies through the tower window and smashes into the floor, the handle of the "metal" ax in his hand bends.

Different characters are heard humming the famous lullaby by Johannes Brahms, who published it in 1868, many years after 1811 when action is supposed to be happening.

The band at the pub includes a tuba, which was invented in the 1830s.

In several scenes, Jakob is seem writing in his book, but often has no inkwell or ink bottle handy. In Napoleonic times, only quills or steel pens were in use, which required an "outside" ink supply.

The French anthem "La Marseillaise" is heard but, as the movie is set in 1811, the "Marseillaise" had been banned by Napoléon Bonaparte in 1805 and was not reinstated as the national anthem until 1879. During this period "Veillons au salut de l'Empire" was used and the French soldiers would have felt insulted at the playing or singing of "La Marseillaise."

When Cavaldi tells the two women bringing food that the brothers will thank them for their kindness, both are shown laughing even though the woman on the left is not laughing, or even smiling.

When Wilhelm falls out of the the tower, a section of the ground bounces when he lands, showing the crash mat hidden under the leaves.

When the Grimm Brothers reach Karlstadt, they tell the guard they came from "Kassel, near Frankfurt." Kassel is about 200 km from Frankfurt, while Karlstadt is about 100 km from Frankfurt.