Deliberate mistake: When Prince Hapi says that Monique should be his seventh wife, she says "you have seven wives?" and he confirms. Actually if she is supposed to be his seventh wife he only has got six wives by now.
Deliberate mistake: If Fogg and company are well on their way around the world, how on earth did Inspector Fix beat them to India?
Answer: Hong Kong was indeed under British rule from 1841-1997. In short, it stems from the First Opium War where in the aftermath of the war, China ceded (gave up control of) Hong Kong to the British. After the war, with the cession of Hong Hong, it wasn't technically part of China any more and Britain didn't really seek to occupy more of China.
Bishop73