Factual errors: Actors Robert Ryan and John Wayne - both in their mid 50s when the movie was made - were (and looked) some 20 and 30 years too old respectively to be portraying their real-life counterparts. Ryan's character Major General James Gavin (the youngest man to hold that rank in the U.S. Army) was only in his mid 30s at the time of D-Day, and Wayne's character Lt. Col. Ben Vandervoort was only 27.
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