Muse is a 2017 English-language Spanish supernatural thriller film directed by Jaume Balagueró. The screenplay, written by Balagueró and Fernando Navarro, is based on José Carlos Somoza's 2003 Spanish novel The Lady Number Thirteen. The film stars Elliot Cowan, Franka Potente, Ana Ularu, Joanne Whalley, Christopher Lloyd and Leonor Watling. It was released in Spain on 1 December 2017.