On a 1968 panel, Robert Penn Warren, Ralph Ellison, and William Styron discussed the use of historical fact in fiction. The audience vociferously held Warren's use in All the King's Men more valid than Styron's in The Confessions of Nat Turner. Two analogies with recent films seem to support that contention.
Crane, John K.
""Tough Talk in the Big Easy": Warrens Use of History and Styron 's The Confessions of Nat Turner,"
Robert Penn Warren Studies: Vol. 2, Article 11.
Available at: https://digitalcommons.wku.edu/rpwstudies/vol2/iss1/11