Michael Caine is 90 this week, and he offers to accept questions by email, which he will then answer by email, as if we are communicating between galaxies. Normally this would bother me – gah, actors – but it is Michael Caine, so I can’t mind. Maurice Micklewhite’s invention Michael Caine – he named himself after The Caine Mutiny – is as luminous a piece of 20th-century British culture as Eleanor Rigby.