The casting sure feels weird now
Given actors' real life politics ...
Jon Voight as Franklin D. Roosevelt.
Alec Baldwin growling "We're going to Tokyo and we're gonna bomb it!"
They probably would have never taken those roles if the movie had been made just a few years later. The actors could still like, respectively, Roosevelt and Doolittle but they probably would fear viewers would get the wrong ideas about how they feel about current events.