Welcome, SNJ! The "you've found your Luca Brasi" scene that you're referring to appears in the novel. Hagen, not Vito, made that statement to Michael. Much as I don't like to disagree with my friend Goombah, I don't recall it in the Saga.
Perhaps I'm not correct about it being in the Saga, but that scene is in one I dvr'd Bravo this year. I believe it was referred to as the "Novella," but how much that differs from the Saga I could not state.
I've lost track of how many versions of the films have been made and shown--and that doesn't even include the overseas versions.
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.
