1.)if the line "micheal corleone says hello" was an ad lib that we assume ffc decided to keep b/c it helped the story, then what else would have made frankie testify against mike?

2.)if the line was intended to mis-direct the bartender who might have to talk to the cops, and NOT a ploy by roth to mis lead frankie into ratting out mike, then how did "roth play this one beautifully?"

3.)so....roth maybe so maybe no wants to whack frankie? if mike already told roth 'pentangeli is a dead man' why would roth bother to do the job for him?

i say roth must have intended to scare frankie into testifying, but the more i think about this the less i like part 2.