Yesterday, I wrote a story about Ilana Glazer's new A24 horror movie False Positive that mentioned a story I've been working on about films with capital-C Crazy premises. False Positive was going to be the first film on that list, and the second film was going to be Focus Features' upcoming Carey Mulligan thriller Promising Young Woman, whose supporting cast was just announced. I'll fill you in on those names in a second, but first we have to talk about this plot, since Focus' announcement walks right up to the line before chickening out. From Focus: "…