Emma Watson, best known for her role as Hermione Granger in the Harry Potter series, is set to star in the upcoming film Colonia Dignidad.

The movie, which is based on true events that took place during the Chilean military coup of 1973, is being directed by Florian Gallenberger.

Watson will star alongside German actor Daniel Bruhl, who is known for his roles in The Fifth Estate and Rush.

In the film, Watson will play Lena, a woman whose husband is kidnapped by the secret police of former Chilean dictator Augusto Pinochet.

Recently, Watson and Bruhl were spotted filming on the streets of Buenos Aires, Argentina. The two actors were seen running down the wet streets, with a camera crew struggling to keep up.

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Watson was dressed in a 1960s-style paisley mini dress and heels, which were not ideal for running. In some scenes, she changed into a pair of grey trainers with a blue Nike tick.

The 24-year-old actress is no stranger to action scenes, having played the quick-witted and resourceful Hermione in the Harry Potter franchise.

However, it seems that Watson is just as fit and energetic in real life as she was on screen.

The camera crew reportedly had a difficult time keeping up with her as she ran at full speed.

Before filming in Buenos Aires, the Colonia Dignidad production team had been shooting in Luxembourg and Germany.

The movie is set to be released in Autumn 2015, but it is not yet clear where it will premiere.

Watson is not the only British actor to be cast in the film.

Michael Nyqvist, who is known for his roles in the Swedish version of The Girl with the Dragon Tattoo and Mission: Impossible – Ghost Protocol, will also appear in Colonia Dignidad.

The film is set in Chile, but the production team has been moving around the world to film different scenes.

Earlier, Watson was spotted arriving in Luxembourg to film in a new location. She was seen at Ankunft Findel Airport with a female friend, wearing no makeup and dark sunglasses.

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