The Star-Spangled Screen

This is a really good overview of how the studios responded to the rise of fascism overseas and how, as the reality of America becoming involved in the war became more possible, what plans they made to adapt, from more military screenplays to what actors to use (since many of the male actors were either drafted or enlisted), to how to get military equipment for sets.

Dick also probes how these war films, including some made after the war, altered or rearranged history in order to make a better movie.