the media could be oriented depend the state and opinion of the controller of these medias .
for exemple :
Disney or Hollywood show the opinion of Westerns ,I mean, so they maybe would make a movies show how the Japeness suffered from Hiroshima and Nagasaki by atomic bombardement , so they made film for pearl harbor , then stop .
they may would not show how the Bush laid about Iraq WMD in their movies .
Disney wouldn't do that it's Disney. Just doesn't fit with their identity. Dr Sues might have, though. I mean Disney did make American propaganda during WWII. But they also haven't done that again since the 40s. They seem much too image conscious to do what you propose anyway.
Hollywood has made a film about Pearl Harbour and it bombed (no pun intended.)
Historical accuracy was also questioned.
I'm not sure how a movie about Hirashima would go down. But there's all sorts of documentaries about it. Those are factual movies so....
Oh bush lying about WMD is basically a meme. Practically everyone seems to laugh about that. Well in Australia we do at least.
We as the audience member don't have to see the things as the creator sees them. In Japan the Grave of the Fireflies is usually interpreted as a movie showing the consequences of not listening/respecting elders and the director has said he wanted to show kids what their parents went through due to the younger generation apparently losing respect. The English dub is usually seen as a harrowing tale examining the collateral damage of war, or just a straight up anti war piece.
So that could happen. But we also aren't North Korea. And have ready access to all different types of media. Plus audience interpretation will not always agree with the creator.