How about a really old school zombie movie? In this one, the zombies are people raised (or brainwashed) to be slaves on a voodoo doctor's plantation.
Madeline Short and Neil Parker are traveling to the estate of her old friend Charles Beaumont for their wedding. Charles actually wants to break up the wedding, as he wants Madeline for himself. He even goes so far as to get a potion from his voodoo doctor neighbor, Legendre, that will force her to change her mind.
Talking to her fails, so Charles gives Madeline the potion in a flower in her bouquet. Shortly after the wedding, the potion takes effect, and Madeline 'dies'. Neil is crushed and gets hopelessly drunk in the local bar.
Legendre has Madeline removed from her grave, and Charles goes to visit her at Legendre's mansion. He finds that he can't stand seeing her in her zombiefied state, so he demands that Legendre release her. Legendre won't have it, administering the potion to Charles instead and enjoying the show as the effects slowly set in on Charles.
Meanwhile, Neil has seen Madeline on the balcony of Legendre's mansion, and goes to get her back.
Confrontations ensue! Will love conquer Legendre's mind control? Watch to find out!
https://www.youtube.com/watch?v=lOzgz1Ddmz8