Right, that wasn't clear. Updated my post

I purposefully picked a popular movie to make my point. I am sure it is great, but the terrible cultural realism made it impossible for me to watch as a French person.

Imagine a movie taking place in the USA where actors are all french, speak french, and act as in a french movie. Wouldn't that ruin it for you? (assuming you are North American, but the logic works for other countries too)