"But if a film was made where Hitler had one that battle of britain and showed britain occupied by the Nazis - I don't see any problem with that at all. Does that make sense ?"

it certainly made sense to len deighton when he wrote the novel SS-GB in 1978
[www.strangewords.com]
I've been waiting for the movie version to come out for years.
Not going to be too easy to cast for hollywood i expect, as it features both english people and fundamentalist nazi's in the same room at times.