Corrected entry: During the battle of Saipan we see a battleship firing and it's clearly stock footage.
Corrected entry: The pistols that Enders and Ox are carrying are 1911A1s. This type of pistol is ONLY single action. In order to fire it you MUST pull the slide to the rear and release it. When Enders puts his .45 in the back of Yahzee's Japanese uniform pants, the hammer is down. Yet, when he pulls it in the Japanese camp, it has miraculously become cocked. This also occurs when Ox is killed. Yahzee, upon learning that Enders killed Whitehorse, picks up Ox's .45 again. The hammer is down indicating that there is no round in the chamber (and a Marine would have known that) and tries to shoot Enders.
Corrected entry: Right before the Saipan D-Day battle scene, it says "The Japanese Island of Saipan June 16, 1944". Saipan's D-Day was actually June 15, 1944. (00:33:55)
Corrected entry: In the early scene where Enders is in the hospital, the nurse gives him his pills in a plastic cup. Plastic was not in use in that manner in the 1940's and chances are the nurse would have given Enders the pill by hand.
Corrected entry: All through the movie when Enders fires his Thompson even in the close up shots you never see a single shell casing come out of the weapon.
Corrected entry: During Enders patrol on Guadalcanal, all but one of the Marines with him are carrying M-1 Garand rifles. Marine riflemen landed on Guadalcanal with the older 1903 Springfield rifles. Only a handful of M-1's found their way to Marine hands which were stolen from follow-on Army landing troops.
Corrected entry: The clip on a Thompson submachine gun from World War II can only hold twenty rounds. In certain parts of Saipan's D-Day and the ambush, Enders shoots more than twenty rounds from his Thompson in one clip. He wouldn't be able to reload without getting shot in these situations.
Corrected entry: When Enders gets stabbed by a bayonet during the middle of the movie he gets his gun and shoots the man stabbing him, this causes blood to splatter everywhere, including the camera lens and for 2-3 seconds there are blood splatterings on the screen.
Corrected entry: In the scene where Enders and Ben first meet, Enders is watching pelicans. They are supposedly at Camp Tarawa, Hawaii. There are no pelicans in Hawaii.