This looks...interesting? It looks like McCarthy's going for a dramatic role, although this still looks a tad more comedic, just not in her usual raunchy way. It's from Marielle Heller, the director of Diary of a Teenage Girl, so I assume it's more of a drama (plus it's based on a Lee Israel's actual memoir, so the true story factor comes into play) and the presence of Richard E. Grant would suggest the same thing, but l would guess it falls more into the "dramedy" vein.