Your interpretation is disputable. She said the
images blurred/merged in her imagination, not that the
ideas were analogous. Novelists often work with images before ideas and before ideologies (organized systems of ideas).
Movies can certainly be analyzed for politics, worldview, etc. but movies are not all contemporary-message-driven. The author's description of how the images emerged, does not constitute an evaluation of the war in Iraq.
On the other hand, a movie that's not a clear-cut partisan propaganda piece, might not be to your taste.
Have you seen the reviews at
Hot Air and
World Socialist? They see the same anti-war and class exploitation themes I'm seeing. Which isn't surprising since Collins herself describes the movie this way. Predictably Morrissey considers the movie total dreck while the socialists love it.