I read this minority review out of curiosity an hour prior to seeing the movie.  The best I can say is that it prepared me for the realistic carnage and gore, but Gibson''s ability to present mid-20th century ground warfare was an inadequate reason to pan a fair portrayal of a principled man's life.  As a senior and as a Vietnam era veteran (non-combatant) I can only surmise that Mr. Hertz has never put himself at risk for anyone or anything and has lived a very sanitized sheltered life to date.