Answer
Isla Fisher played the character Ruth Condomine in the 2020 film Blithe Spirit. The film is a remake of the 1945 film of the same name, which was based on the 1941 play of the same name by Noël Coward. The film tells the story of a writer named Charles Condomine who accidentally summons the ghost of his first wife, Elvira, after conducting a séance with his second wife, Ruth.