The Dude in the Vader Helmet?

All you writers and filmmakers out there (especially anyone doing anything "fact-based") who fear going over your audience's heads: Your fears are valid. Here's the quote from DCist:

___________

American History Museum, Americans at War Exhibit:
Young tourist couple pushing baby stroller. They see a propaganda poster with a soldier in a black helmet.
Husband: "Wow, that really looks like Darth Vader."
Wife: "Whoa, that is weird..... So, did Star Wars come out before or after World War II?"
___________

And pity the hardworking people who probably spent two years developing this exhibit, too.

Imagine how confused this couple would be if they knew about or had seen "The Great Dictator."

Oh, and the Allies won World War II because they developed the light saber before the Nazis.