The Glass Castle (French: Le Château de verre) is a 1950 French romantic drama film directed by René Clément who co-wrote the screenplay with Gian Bistolfi and Pierre Bost, based on the 1935 novel Das große Einmaleins by Vicki Baum. The film stars Michèle Morgan and Jean Marais, Jean Servais (French version), Fosco Giachetti (Italian version) and Elisa Cegani. It was shot at the Billancourt Studios in Paris and on location around the city. The film's sets were designed by the art director Léon Barsacq.