The large budget movies you mentioned gave an impression of the epic size of the battles of the times, error riddled or not. "Dunkirk" failed to deliver a sense of that.
A low budget movie that succeeded was "Casablanca". Shot on a back lot in Hollywood, it has become iconic and a favourite to this day. "Dunkirk" will be forgotten (hopefully) in a couple of years.
According to SPR, only Rangers and Paratroopers (American ones) landed in Normandy, and they got off Omaha in 20 minutes.
All were good movies, that had multiple historical errors. (Leopards at Arnhem, a 55 year old moderately obese John Wayne playing a 28 year old, Americans facing SS Tigers immediately after D-Day, P51 Tank busters etc, etc)
Hardly showed the epic scales.


















































