This movie is a favourite of mine but I am always amused by the flight to Cairo bit. Nigel Patrick's character, Tony, says that he is delivering a Vampire "for de Havillands", but in spite of taking his pregnant wife with him, admits when he gets there that he has no idea how they are going to get back! When John Justin's Phillip suggests cadging a lift on the Comet, Tony says "no, rival company", but he has delivered the Vampire to Cairo for that company! No wonder Ralph Richardson tell his chief designer that "Tony hasn't got it up there" (tapping his head).