Arantxa is a writer and Project Development Coordinator for film and television at AMACINEMA, a space founded by director Alejandra Márquez Abella. Her work as a writer includes El rastro de tu sangre en la nieve, an animation project created by Elías Nahmías and Gonzalo García Barcha, La niña de la orilla, a screenplay selected for the Havana Film Festival in 2020, an episode of the TV series La liberación, created by Márquez Abella, and Elena, a fiction feature film in development and produced by Agencia Bengala and AMACINEMA. As a film critic she has written about film in spaces such as Revista de la Universidad, Cine Premiere magazine, Nexos magazine, among others, as well as in festival publications such as the UNAM International Film Festival (FICUNAM), Gira de Documentales Ambulante, the Mar del Plata International Film Festival.