During World War II, Othello Radou was a member of the Resistance movements with his brother-in-law André Dreyer. Despite the difficulties of this period he persevered with his painting using any material he could find - cardboard, paper, hardboard. From 1946, Othello Radou participated regularly in the group exhibition "Salon des Réalités Nouvelles", showing his work with other artists such as Auguste Herbin, Jean Marie Euzet and Henri Valensi. The art critic of "Le Soir", Leon Degand wrote of him in March 1947: "With regard to painting, we hasten to draw attention to two revelations: Willy Mucha and Othello Radou. The 'fauvist' expressionism of the first and the integral abstraction of the second, testify to serious qualities of invention. Their styles are not improvised and one discovers the complete presence of the artist. Two names that one likes the opportunity to find at private exhibitions". Othello Radou was also working at this time as a film producer and in 1946 he worked on the film, with the "Confédération Générale du Cinema Francais", entitled "La Bataille du Rail" directed by René Clément. This film won two prizes at the first Cannes Film Festival in 1946.