I do mind Ford not being white. What if they made a movie about Martin Luther King and he was played by a white actor? I wouldn't want that. Some roles are to be played by white actors and some are better to be played by black actors. Mos Def is a bad choice for Ford Perfect because I can hear humour in his voice in the trailer. Ford was ligh-headed but when he spoke he was serious.
I want to mention a point which Ralf wrote in the German section - supposedly, there is no word in the books about whether Ford is black or white or red or whatever. So, if that is true (which I can't say 100%), it means that it is your own and personal problem if you expect Ford Prefect being a white guy. Most definitely, the comparison between M.L.Kind and Ford Prefect would be a rather bad one if that mentioned information is true - since King was a black guy and we don't know what color Ford has.
Also, if you are hinting at me being an idiot, I'd suggest you to take it back.
I didn't say that. And I don't have sufficient information yet to make that conclusion. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
The only problem I see is that you have way too many strict expectations and automatically don't like the movie with only seeing maybe 2% of it. I do think that there can't be many literature adaptations to the cinema without changing more or less elements of the novel. The question would be if they manage to make a good movie and still relate to the novel in a way which can please fans. And to decide if that is the case, it's a bit too early I guess.
P.S: Another point I want to mention but had forgotten earlier (thanks again for Ralf for reminding me of it in the German section): Before his death, Douglas Adams worked on the screenplay and thus agreed with the changes they made in his life time.