Joana Niza Braga and Nuno Bento both worked on the sound for the movie.‘Free Solo’, which will be screened on 17 March on the National Geographic channel, follows US climber Alex Honnold on a 900m climb without ropes or other equipment of the El Capitan granite wall in Yosemite National Park in California.

Bento has already been awarded a Golden Reel for his work as sound editor on the documentary, while Braga, who was the Foley mixer for the film, was last weekend given an award for sound montage by the US Cinema Audio Society.