Went to the DVD shop last night and picked up this movie. Have you seen it? It's very good and well worth watching. It's one of those movies in which the main character's characters (is that good english?) are hidden, and then revealed little by little throughout the movie. So the picture you get of them develops and changes throughout.
Anyway I enjoyed it and the main story line - all about drug companies doing dirty deals with the British Government (surely not?) to the detriment of the African people, was very interesting, and quite disturbing- can't imagine that it would be based on any kind of fact though(!).
If you haven't seen it, and you would listen to my opinion, I suggest you rent and watch it. I score it 8 out of 10. (oh yes and it's got Ralph Fiennes in it!)