My son (7) is a fan of scary stuff. He likes really spooky Halloween decor and doesn't typically get frightened by the kind of stuff that might send other kids under the covers. Recently he has expressed interest in watching horror films but I'm not a huge fan of the genre and don't really want him watching contemporary or even 90s horror thrillers (Scream is apparently known around his school and is now a classic). Seeking recs for classic, foundational, scary movies. Weird is okay, black & white is great, blood & guts fine in moderation. Extra points for scary but also a little funny.