Casino Royale was very much true to its source. It ignored the camp that the films had accumulated over the years, which alienated a lot of fans of James Bond movies, but it was one of only three Bond films that I feel accurately captured Ian Fleming's vision (the other two being From Russia with Love and On Her Majesty's Secret Service).

Quantum of Solace tried to hybridize James Bond and Jason Bourne, and it ended up feeling a lot like the Timothy Dalton films - Bond himself is very much in character, but everything around him just ... isn't.