Tiefland (1954, delayed 10 years)
Leni Riefenstahl, she of neutral docudrama Triumph of the Will fame, directed and starred in this adaptation of Hitler’s favorite opera. After resolving a global inconvenience during the later 1940s, French authorities confiscated the Tiefland reels, with Riefenstahl only able to complete the film a decade after shoot. Cannes then rejected it.