Character mistake: While discussing his squad providing air support for the Marines on the ground, Lt. Cmdr. Cevoli refers to the men as "soldiers." Marines are not called "soldiers" because they are not in the Army. It is common for a layperson to make this error but nobody in the U.S. Navy would do this.
Character mistake: Near the ending of the movie, when Aatami slips with his pickaxe under the plane, they hear a noise inside the plane and ignore the noise by saying it's just an old plane. The DC-3 was actually only 8 years old and still in production by the time setting of the movie, which doesn't make it really that old. (01:13:23)