The movie did remind me of what a terrible time I had reading book 5. The author did an outstanding job of developing the character and story around Dolores Umbridge. I hated this woman and hated just about every single chapter she was in. Imagine if you will, and maybe you had the same experience, reading the story and just hating what the character was doing and vocalizing "Why the hell doesn't someone do something!!" That was me and I'm never like that, with books at least. So when I found out the movie was about this book, my emotions became mixed about seeing it.
Fortunately the movie has less time to develop her character and while I still despise the character, it wasn't nearly as painful as reading the book. Yay!!
I spoke with Movie-Mate-Maria regarding one of the characters, Emma Thompson. MMM mentioned that we never saw Emma Thompson (playing Sybill Trelawney) again after her near expulsion. "Sure we did, she was Bellatrix Lestrange right?" Nope, said MMM, she played Sybill. "Really? I thought for sure Emma Thompson was Bellatrix. Wait, I'm thinking of Emma Samms. Is that right? Does Emma Samms look anything like Bellatrix?" Judge for yourself. I may still be right!!!

Helena Bonham Carter who played Bellatrix Lestrange.

Emma Samms who from Dynasty and General Hospital. Different people? I think not.