Operation Double Cross (, , ) is a 1965 Eurospy film starring Jean Marais. A French-Spanish-Italian international co-production, it is based on a novel by René Cambon, and was directed by Gilles Grangier.
In Barcelona, secret agent Antoine Donadieu thwarts the plans of a Nazi scientist.
In the 2002 film, The Bourne Identity, Marie, in Jason's Paris apartment, wears a Train D'enfer shirt.