I watched the English movie this weekend, and I have to say it is extremely close to the first book. It exceeds two and a half hours, so I believe they changed a part at the end with Ana being in London, who they tapped to discover Harriet in Australia. Instead Harriet had assumed Ana's life in London, as they looked near identical when Ana died in an accident.
Other than that, the English movie version is just soooooooo close to the book, it is near identical. I have to give them a huge thumbs up for doing that, as rarely do they stick with the book. The Swedish version was excellent, though they deviated from the book so much, and left so much out, that if you hadn't read the book you wouldn't understand so much underlying information.