Just saw it two nights ago. I'd never read or seen the book, radio, or TV shows. It was a bit flat. At least five people got up and walked out, but since I'm a film programmer at another theater, I decided to stick it out, hoping for a boffo ending. No luck.

I really enjoyed the dolphin antics and photography, thought the black character was reminiscent of the dude in "Brother From Another Planet," found Alan Rickman's voice perhaps the most compelling character in the film, and was slightly disappointed in the role given to Bill Nighy - although he did the best he could with a minor part.

The most appealing sequence was the planet factory where they were rebuilding earth. It rated about 4, with 10 being the top.
It was like going to somebody else's family reunion and not getting all the little inside jokes.