I was surprised to learn (about myself at least) that this isn't really true, when I saw the musical Hamilton. Of course, the characters also break out into song, etc.
Well that is to be expected, because much like theatre musicals don't have that WISYWIG immersion expectation at all.
To test your belief, it would make more sense to picture a "serious" historical movie where the actors portraying the founding fathers don't look much at all like the faces on the dollar bills.
Not quite that level, but plenty of people seem fine with Bridgerton swapping the race of its characters, which I believe is otherwise a standard period drama.
To test your belief, it would make more sense to picture a "serious" historical movie where the actors portraying the founding fathers don't look much at all like the faces on the dollar bills.