I believe that filmmakers have some responsibility to portray the truth in movies, but it depends on the movie. If they are trying to make a documentary, or portray a meaningful message about the event that had happened then I believe that they should be completely honest. Yet, if the movie is meant for pure entertainment value, and does not in any way try to portray the truth than they should not be held to such high standards. This is a very difficult thing to do, differentiate between these two standards. It can also been seen as rude if a filmmaker moves too much from the truth, or tries to poke fun at the truth.
If a movie refers to a specific historical event, I believe they should use complete accuracy, but even when trying to achieve this it can become difficult depending on which side of the issue the filmmakers sits on. For example if these is a movie made about a war, the United States may view the war in one way, when in turn the other country has a completely different view.
In addition movies are for the purpose of telling a story, which can involve taking events that have happened in their facts and building a story around it that may have happened. I believe this can be okay in filmmaking. As this style does base around a true story and just using fillers to create a story worth viewing. If the filmmaker is very careful about how they portray their movie to be seen, they don’t have to rely on the complete truth. Yet, if a filmmaker makes a movie meant and advertised to be a true story, I believe they should be held to a higher standard. In addition the truth needed can also be affected by how close to the event the filmmaker gets. Overall, I believe the standard changes for every movie and the story it is trying to portray.