Could have been a lot better
I read Michelle Knight's book and its one of the best books you will ever read. But the TV movie fails miserably. You never get a sense of Michelle's personal struggle and due to censorship graphic details have been left out. It was so different from the book that I couldn't finish watching it. I didn't care for the actress who portrayed Michelle and the actor they chose for Castro wasn't believable enough.
Read the book if you haven't already. It's gripping.