[SCDogPapa]

I suppose not, but it has been said that the film fudges "Stonewall's" views on slavery to make them more acceptable to the contemporary audience.

I saw this movie on the 16th. I don't remember hearing Stonewall ever mention slavery.

[x]

I haven't seen the film, but in a very positive article on the film, Samuel Francis writes:

Actor Stephen Lang's performance as Jackson, driven by intense religious fires, dominates the movie. Mr. Maxwell is perhaps on weaker ground in having Jackson deliver a short sermon to a slave on how slavery is bound to end. From what I know of Jackson, he thought little about slavery, except to believe that God had established it. Mr. Maxwell may be skirting inaccuracy—and a certain amount of political correctness—in trying to ignore what was a genuine Southern belief that racial slavery was divinely ordained, though Lee himself (played in the movie by Robert Duvall) was a good deal less attached to the peculiar institution than many.

Francis agrees with Maxwell's views in general, but indicates that in this regard, Maxwell probably went overboard. Those who disagree more strongly than Francis does may find other places where Maxwell fudges things.