Two Thousand Maniacs!

Two Thousand Maniacs is a 1964 American splatter film written and directed by Herschell Gordon Lewis. It follows a group of Northern tourists who are savagely tortured and murdered during a Confederate celebration of a small southern communitys centennial. The film starred 1963 Playboy Playmate Connie Mason.

Six Yankee tourists are lured into the fictional small Southern town of Pleasant Valley by redneck citizens, to be the guests of honor for the centennial celebration of the day Union troops destroyed the town. The tourists are initially treated with hospitality and given rooms to stay in the local hotel. However, that evening, one of the women is attacked by a local man she runs toward the town for help, but is accosted by the mayor and several other locals, who hold her down on a table and dismember her alive with an axe.The following night, the womans dismembered limbs are roasted over a barbecue with the townspeople in attendance. Meanwhile, two of the guests discover a park plaque describing the blood centennial celebration in which they will be killed. One of the men is apprehended by the townspeople and made to participate in a horse race, which entails his body being ripped apart limb by limb by horses who are roped to his extremities. ........

Source: Wikipedia