This film (being shown on 35mm) screens as part of the Southern Gothic season. The movie is also being shown on Sunday 24th May. You can find all the details here.
Chicago Reader review:
One of the most neglected and underrated Hollywood films of its era, Richard Fleischer's blistering 1975 melodrama about a slave-breeding plantation in the Deep South, set in the 1840s, was widely ridiculed as camp in this country when it came out. But apart from this film and Charles Burnett's recent Nightjohn, it's doubtful whether many more insightful and penetrating movies about American slavery exist. Scripted by Norman Wexler from a sensationalist novel by Kyle Onstott; with James Mason, Susan George, Perry King, Richard Ward, Brenda Sykes, and Ken Norton.
Here (and above) is the trailer.