: The romantic dreamer who believes there is truth hidden within legends and fairy tales.

: The brothers are portrayed with contrasting personalities:

The film reimagines the famous folklore collectors, Jacob and Wilhelm Grimm, as traveling con artists who pretend to vanquish supernatural creatures for money. Their "secret" is exposed when they encounter a real magical curse in a haunted forest, forcing them to use their knowledge of fairy tales to survive. Key Themes and Stylistic Elements

While the film is a fictional adventure, the real brothers—Jacob and Wilhelm Grimm—were German scholars and linguists. Their true "secret" or legacy was their pioneering work in German philology and their effort to preserve oral traditions that were disappearing, ultimately saving these stories for future generations. The Brothers Grimm (2005) - IMDb

The phrase most commonly refers to the Spanish title of the 2005 fantasy film directed by Terry Gilliam, known in English as The Brothers Grimm .