Historian, filmmaker and independent researcher, Arantza studied Creative Documentary Making, and has directed films such as Passatgeres (2012) and Euritan (2017). She has carried out various research projects about the Basque political conflict from the perspective of feminism and representation in film. Arantza graduated in History at the University of the Basque Country. She completed her training in audiovisual arts with a diploma in Creative Documentary Making at Francesca Bonnemaison Centre (Barcelona). She has also worked on training for Documentary Film Screenwriting with Carmen Ovalos (Barcelona), and has received specific training from Victor Erice and Patricio Guzman (Madrid).

In 2012 she began to work as a filmmaker, directing several pieces including the short film EURITAN (2017), selected for the 2017 KIMUAK catalogue. She has been featured at festivals such as Zinebi, Punto de Vista, Miradas Doc and Malaga Film Festival. In 2017 she was chosen by Huarte Centre for Contemporary Art for a curatorial research residence. As part of that she attended the international seminar “Images seen through: reflections on images from conflicts” in June, 2018. In 2018 she was selected for Ikusmira Berriak, an international residency programme organized by San Sebastian Film Festival, Tabakalera International Centre for Contemporary Culture, and Elias Querejeta Film School. There she worked on the development of her current film, 918 Gau.

Since 2019 she has been writing her PhD at Lisbon Fine Arts University with Susana De Sousa Dias and Ana Longoni, researching issues connecting cinema representation, feminism and Basque political conflict. She has worked as coordinator at the Hiriartea Centre for Contemporary Culture (Pamplona, Navarre) and as coordinator of the Master’s Degree in Artistic Practices and Cultural Studies at the Huarte Center for Contemporary Art (Huarte, Navarre)