You're much deceived: in nothing am I changed

I started reading Beloved yesterday, and today somebody brought to my attention that this was a film, produced by and starring Oprah Winfrey. I had promised to read a book I knew nothing about, so you might be thinking I have broken this promise. Well, I can assure you that as much as I watch Oprah's show...I know absolutely nothing about this story. Well, except what I read on the back cover.