Postojna Cave on the big screen

Bucking Fastard, a film by world-renowned German director Werner Herzog that was filmed in Postojna Cave among other locations, will premiere this afternoon at the 83rd annual Venice International Film Festival, one of the world’s most prestigious film festivals.

 

“The photo shows Jean and Joan, played by the Mara sisters, in the notorious cave that will play a central role in the story. In search of an imaginary land where true love is possible, Jean and Joan start digging a tunnel through a mountain range to reach it. Herzog filmed some important scenes in Postojna Cave in Slovenia, a cave described in the film as the symbolic ‘core of the Earth.’” This is how film critic Jordan Ruimy described the film ahead of the premiere.

Inspired by a true story, Bucking Fastard stars Rooney and Kate Mara as two sisters who have an uncanny bond, living according to their own social and emotional standards and rules. The cast also features Orlando Bloom and Domhnall Gleeson.

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Photo by HanWay films

Werner Herzog presented the film to his fans online in his own distinctive way: “They are not twins, but two sisters who are so close that they dream the same dreams, speak in unison, fall in love with the same man and make the same slip of the tongue at the same moment: ‘Bucking Fastard’. So, it was clear that should be the title.”

Shot in extraordinary locations across Ireland and Slovenia, the film explores the search for the meaning of life. Last spring, the production came to Postojna Cave as one of the filming locations. In awe of the cave, Herzog said at the time: “This is the most incredible cave in the world.”

After the filming concluded in late April 2025, Herzog also signed Postojna Cave’s Golden Book of VIP Visitors, leaving a heartfelt message: “Thank you so much for allowing me to film in your cave. Postojna Cave is the most incredible cave in the world. It is the place of wonders and poetry.”

02 Werner Herzog shot his latest movie with Katie and Rooney Mara in Postojna Cave Slovenia 2

In 2025, Werner Herzog was awarded the Golden Lion for Lifetime Achievement at the Venice International Film Festival. This year, his film Bucking Fastard has been selected for the festival’s Main Competition, where it is competing for the prestigious Golden Lion for the Best Film. 

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 Film critics have identified Bucking Fastard as one of the most anticipated films of this year’s festival and a serious contender for the Golden Lion.