Main character undergoes little development. Also unrealistic. Puts to shame and undermines the struggle and hard work that Women's RAF went through during this critical time in history. This movie is a poor caricature of what the modern day feminist wishes they could become.
Otherwise, this film is a superhero comic put on the screen. It's fun, B-rated, but not worth the money it's marketed.
To enjoy it, don't have any pretenses this is a historical film and the action obeys physics.