One of the things mentioned upthread was Brando's refusal to memorize his lines. While admittedly a bit lazy and diva-ish, it's been said that he didn't like memorizing lines because he didn't want to feel restricted to what was on the page.
I know it'll never happen, but I think an episode could be done on Lost Souls itself.
If anyone is curious, here's a link to the original shooting script. It's much more faithful to the book, although it has a particularly odd moment where Our Hero discovers that his girlfriend is a cat, mid-coitus, and does not care
.http://www.everythin...oreauscript.php