And yet: as most of us have remarked, Michael gives Fredo two suspicious, piercing looks: when Fredo asks if anyone he knows is in Havana (and Fredo denies knowing Ola and Roth); and at the nightclub, when Michael �introduces� Ola to Fredo, and Ola says, �we never met.� The close-ups on Michael�s face show Michael looking intently at Fredo�s response, as if trying to see if he was lying.
It was totally unreasonable for Fredo never to have met Ola, in my opinion. Fredo was with Moe Greene for years. Greene was Roth's long time friend and, even, protege. Ola was Roth's "Sicilian messnger boy".
So, it stands to reason that Ola would have visited Vegas - on business mutual to both Greene and Roth - probably on many occasions, during Fredo's time there. That he wouldn't pay his respects to the great Don Corleone's son seems, as I say, totally unreasonable.
And also, if he remembers Tom from the old days, how would he not have, at the very least, met Fredo.
But he then goes on to give Fredo the dirt on Roth's plans.
A very ambiguous scene.
