I really love this latest version of Persuasion. The music in it especially adds to the drama being so sweeping and romantic. I'm not sure it's better than the book, because they're both good. I'll have to seek out the 1995 version, although I don't really like Ciaran Hinds.
One movie that is worse than the book is "Timeline". The book by Michael Crichton is a good medieval slash modern tech actioner with lots of archeology, history and just fun suspense thrown in. The movie is good but I was disappointed by it somewhat. One reason to watch is Gerry Butler.