How good was the original film !!
The more 'Docu Drama' offerings that come out really only highlight what a good job they made of the original film.
The original film gave a very good idea of both the human cost of the operation plus the very tight time schedule for the tech side and crew training.
Films are basically entertainment, and should not be treated as historical material, but in the case of the Dam Busters they certainly did a good job considering the security constraints at the time of making. The clips of the 'no ball' trials were excellent and then we had Eric Coates giving us that classic theme tune. But it also finished with a very moving ending, that left no one in any doubt of the true cost of the operation, and how empty the mess was the next morning, which of course was true of Bomber Command at the time.