I'll bite; The Dambusters with much more accuracy i.e. Guy Gibson was a bit of an ********, most of the people killed were Russian Slave Workers and in itself didn't actually alter the course of the war very much - except that 617 became a 'Special' Bomber Squadron which did go on to use...
Would be OK with this as long as the CGI dogfights were accurate as opposed to the shite in Dunkirk etc.
And as you say stick to the facts or BoB anoraks like me will picket the Cinema!
Having read Heart of Darkness there is virtually no connection between it and Apocalypse Now aside from the fact there is a river and someone called Kirtz up the river who has become a rather bad man...
Certainly don't remember the Napalm scene in Heart of Darkness! :p