Pheasant:
Get real guys. The film was about the McGregors and the people that flew the aircraft, the rest was infill accurate or not.
I profoundly disagree with you. The Brothers McGregor may think it was about them just as many people seem to think it was about the Lancaster. Both were merely a means to an end, to peddle 66 year old propaganda that far outweighs anything that Goebbels or Lord Haw Haw could have come up with in terms of pernicious falsehood. A generation brought up on GPS in mobile phones can have little concept of the challenge that night navigation for Main Force was. Ewan's minute out at a lighthouse in broad daylight gives the slightest idea of the difficulties faced by those very young men.
As to your patronising comment that we should be grateful for "a f...ing great thing that takes up half of Picadilly", personally I'm grateful to Robin Gibb, without whom we would still be waiting a century after the event I suspect.