I would say that the portayal of slave owners in these kinds of movies is highly inaccurate.

Slave owners are always portrayed in the movies as depraved comic book villains full of sadism and constantly exercising cruel torments on the slaves.

Slaves were an expensive investment necessary to keep the Southern economy running. Would slave owners really be using them as constant torture victims? Slaves who escaped were definitely punished as a preventative measure to discourage others, but why would a slave owner willfully torture and perhaps cripple a slave he had spent a lot of money on who would be unable to work as a result of injuries? How can you make a profit off your cotton crop if all your slaves have been beaten too much to pick it?

In the days of animal-powered farming, how many farmers would constantly abuse their non-human livestock to the point of death or crippling?

A moment's logical thought reveals that the treatment of slaves in Hollywood movies is just so much sick fantasizing on the parts of screewriters.