Great ideas Valentin and dpg... We're definitely on the same page.
I think the common thread with the aforementioned films with an anti-hero at the helm is that it's a steady decline in moral ground as the story progresses, until the end, where they either repent and in turn save themselves -- Salieri (the whole movie is a confession...) in Amadues, and even Henry Hill in Goodfellas/ Jordan Belfort The Wolf of Wall Street (albeit both giving up the criminal life begrudgingly -- Hill with his "Noodles and Ketchup.", Belfort with his "Sell me this pen... Sell me this pen... Sell me this pen...) or choose not to repent and get way with murder/ the immoral act, but lose themselves -- Ripley, Bateman, and Griffin Mill...
Not sure which way my guy would go, but I foresee the possibility of a culminating scene at an awards night... For good or for ill...
Thanks for the feedback.