I believe that filmmakers have the privilege to make a movie be whatever it is they want it to be; after all, it is their job. I think the responsibility falls on the people watching the movies to research the historical aspect of the film to their own standards. As graphics and movies as a whole, become more realistic it is important to discern that through any medium, information is going to be distorted by those who relay it.
Just like when your grandma is telling you a story while fully believing that the truth should never come in the way of a good story, it is important to take everything you hear with a proverbial grain of salt.
Unfortunately due to a lack of time, I have been rather cut off from the movie world but, I do know, that in the past, historical movies that I have seen, I have not believed to be “the gospel”. Even books in history class are slanted one direction and leave out many key events that, for the other side of the story, changed/justified the war. For this reason, as a viewer, I am never compelled to believe any movie 100%.
Historical blockbusters are becoming a double-edged sword. They raise awareness of events, which should in a utopian society encourage people to research further into the topic themselves; however, most people choose not to and instead believe everything that the movie portrays.
This is where the problems begin, but again, I think that the responsibility falls into the hands of the viewer. The film industry is going to continue to produce movies that draw the biggest crowds, not movies that are the accurate. This will remain a constant no matter how hard the public tries to change it. So instead of rebelling against this frame of thought, viewers should embrace it, and use movies as supplements to their knowledge.