And the He 177 is not a BoB bird so unless it was the Baby Blitz in 1944 it's an anachronism.
My bad, it definitely was the baby Blitz. The movie starts in 1942 and ends in the weeks or months before D Day invasion.
I enjoyed the heck out of the movie. It's a movie and you can definitely find some places to be critical, but I was hooked for two hours. Check it out, it's better then a lot of the crap out there.