One question: were the Bond movies made in chronological order? "Diamonds Are Forever" seems more a sequel to "You only live Twice" than to "On Her Majesty's Secret Services", and not just because of the change of actor. In DaF, Bond starts to hunt for Blofeld in Japan, where he ended in YoLT, he doesn't seem affected by the death of her wife, and Blofeld has no signs of the wounds he took in "OhMSS". Am I the only one bothered by this?
It bother me too, but it's just a side effect of the unfortunate reality that the film studio made the movies in a different order from the books.
As @Doc755 will point out, continuity was a minor concern in 60s and 70s filmmaking.