Returning from Istanbul on the flight deck of a BA 737, we spotted an AF 747 opposite direction which had checked in giving a level 2,000ft below us, but it looked to be above us. As we got closer, sure enough it seemed to descend and went underneath us, being registered on the radalt which was crabbed at 4,000ft.
Liked the bit about Liz Hurley; just shows what a twatt Hugh Grant really is.