On this week's episode of "Screen Talk," we wrap up the Cannes Film Festival and dive into the horror phenomena scaring up big box office. “The Mandalorian” and who ? Looking beyond the numbers — because, yes, the new “Star Wars” movie was crowned king of the Memorial Day box office — the movies dominating theaters and conversation right now aren’t the ones with Lucasfilm and Disney+ IP. Instead, two new original horror films from directors in their twenties are ruling the discourse, and