An article in the 7 November 1966 issue of Boxoffice reported that four featurettes were made to promote the movie: "He Must Find There Nothing", in a 20-minute and a 10-minute version, a making of the production and how locations had to be modified to reflect the 1944 period; "Reality Must Not Be Left to Chance", 10-minute short behind the scenes; and a fourth featurette about composer
Maurice Jarre.
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