Over the past few decades, there have been many powerful Vietnam War films that highlight the horrific brutality of battle and the tragic cost of the conflict, many of which have been criticized by experts for their accuracy or realism. While big-screen war films can serve as important reminders of the bloodshed and lives lost during conflicts like Vietnam, sometimes entertainment or the narrative demands of history are put above historical accuracy. In these cases, experts are often quick to point out where the filmmakers got it wrong and what the actual historical facts were about the event. Despite the best efforts of actors, directors, and screenwriters to achieve realism, certain errors still slip through. There are many reasons why Vietnam War films are criticized by experts for their accuracy or realism.