Desc: Kampen om tungtvannet: Directed by Jean Dréville, Titus Vibe-Müller. With Raoul Dautry, Frédéric Joliot-Curie, Lew Kowarski, H.H. Halban. A factual reconstruction of the sabotage which took place to prevent Germany from getting the heavy water needed to make an atomic bomb during World War II.