I heard about this a couple of months ago. Apparently there is a problem over Guy Gibson's dog's name. It was a black labrador and it went everywhere with him, except when he was flying, and its name was Nigger. The prospective producers don't know what to do about it. They want it included in the story as it was a big part of Gibson's life and was the squadron's mascot but they're scared of causing offense.
Anyway, who ever they cast as Gibson isn't going to be as gorgeous as Richard Todd.
