The largest purpose for producing films that portray slavery now days is to foster a sense of victimhood and hatred toward whites. All these movies are made by leftists who over exaggerate and lie as they did in Roots or as Opera when she was promoting a film citing millions of lynched blacks. It panders to the audience more so than entertains them. It's kinda like the benevolent master back in the slave days who assumed the role of benevolent caretaker.
I was referring to Django and 12 Years A Slave. Claiming to be a "student of history", you should know that The Civil War has been the backdrop of many movies over many generations, and within many of those movies are many human interest stories. To state that telling some of these stories that focus on slavery is "fostering a sense of victim hood and hatred" is disingenuous, and nothing but a rightwing talking point, and really makes it sound as if you are stating that ithe slavery part of the war should just be ignored.
I suppose that you would feel more comfortable if the "truth" presented to the public was that "the war was strictly fought to free the slaves" which is nowhere near the real truth.
Slavery was an ugly truth, and one of the important issues in the war that was fought, and should chronicled in films and written accounts.
If anything, to tell the true story. Not some romanticized, feel good version.