Good cast, cheap quality. Look at The imitation game, it's based on same era, just compare the realism and quality. Something less driven by money, diversity, "pleasing the crowd" and more based on realism.
There's a bunch of accents that were really bad too, see if you can point them all out.
Why did everything in this movie also just miraculously go according to plan? Never and I mean never would everything go the way it did in this movie.
Again, good cast. Bad movie.