PENTANGELI :You remember Willy Cicci, don't you, Freddie? We was all together with the old man Clemenza in Brooklyn... before...uh...
FREDO: We were all upset about that.
PENTANGELI: That's what I'm here to talk to your brother about. What's with him, I got to get a letter of introduction to have a 'sitdown'?
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Interesting. I wonder what made FFC change the dialogue in that scene to a dialogue that implies that Clemenza died from something other than a heart attack?
What else changed? All I remmeber different is that Fredo says something about a heart attack and Cicci says something like "No, no, that was no heart attack."