Ragarding “Scarlet Letter.” Not anyone in Hollywood has clue about the religious issues behind that book. The Puritans are seen in the light of the Church state issues in Massachusetts in the 1830s and 1840s, and all wrong historically. Absolutely sure no one has ever read Perry Miller.
Judging from some of the Hollywood movies I've seen, Perry Miller would be far beyond the intellectual capability of most screenwriters.
A few years ago, I saw a film entitled "Swing Kids," which was about teenagers growing up in Nazi Germany. It might have been a great film had the screenwriters been more competent. For one thing, they had the Polish crisis if 1939 come before the Munich crisis--which is like having the Battle of Fort Sumter come before Dred Scott vs. Sandford.