I am so glad you're coming up to London with Charlotte (11) and Tim (9). My, how they must have grown! But I'm not quite sure that you should take them to see Thunderbirds, especially since you say that Charlotte is a great fan of the telly series. Quite what she'll think of the film, I don't know, because it is more than a bit different. Tim might be okay, though, since I remember he liked Spy Kids, which it resembles rather more than Gerry Anderson's 39-year-old original.