It just doesn't work in the 21st c. This is about the 'old africa', colonial, paternalistic and patronising. The knowledge that it was all effectively true, and that life has deteriorated for the people left behind in independent former colonies to either desparation and violence, or excessive ostentatious wealth on a scale which makes the colonial regime's selective opulence look modest, is disconcerting.
So maybe a good book, but an incorrect film. Lacks message and does not inform. Better to have made an out-and-out farce. No-one's going to watch it anyway.