I have a feeling John Candy could have done Ignatius, but I also wonder if “Confederacy” might be like “Catcher in the Rye” - it probably wouldn’t matter who you got for the lead, it would be really tough to get the feeling of the book onto the screen.
And now I’ve got to sign off - my valve is getting bothersome.
My valve! My valve is like an altar ego, my mad self, seat of my greatness and of my torment!