Notwithstanding the fine acting, directing, and character development, the premise of the film is interesting but frankly implausible. That a failed operation Overlord, the invasion of Normandy, would cause the Allies to quit the liberation of Europe is untenable for a host of historical reasons, as follows. Nearly complete allied air supremacy existed over Europe in June, 1944 as it was a prerequisite for the D-day invasion. Likewise, the German U-boat threat was largely eliminated after May, 1943 and so threats and disruption of shipping in the Atlantic had been markedly reduced by then. Thus, even with a failed allied invasion of Normandy, the allies would not have been placed at a sufficiently great risk so as to sue for peace with Hitler. Moreover, the surrender of Japan in the wake of the atomic bombings of Hiroshima and Nagasaki left the U.S. as the world's sole nuclear power in August, 1945. The dramatic surrender of Japan would have further released massive additional U.S. resources in the Pacific, such as carrier and battleship groups as well as 100's if not 1000's of B29 Superfortresses for re-tasking to Europe. Further massive conventional bombing would have eventually neutralized German fortified positions along the coast and likely would have decimated the Wehrmacht's infantry and Panzer divisions in France. In the unlikely event that such massive augmented air power would have still failed, the U.S. might have employed its nascent nuclear stockpile in late 1945 to obliterate Hitler's "Atlantic Wall." Tactical use of the atomic bomb in an amphibious invasion of Japan was already being debated for the planned "Operation Downfall" in the event that Imperial Japan would refuse to capitulate. Moreover, in the wake of the release of the nuclear genie, it is extremely implausible that any allied commander-in-chief would sue for peace and permit a technological juggernaut like Nazi Germany to rest, regroup, and ultimately develop its own atomic weapons. The fear of a Nazi atomic weapons program itself provided the impetus for the Manhattan project. In short, while the film is certainly entertaining, worth watching, and thought provoking, functional students of history can realize the implausibility of the plot's premise.