After watching the film last night, for the first time in two years, I reckon Cazale gives the best performance out of all of the fantastic performances. Brando's a close second.

One scene, a brief moment, if you like, where all faces and gestures are spot on: when Michael introduces Fredo to Kay, at the party. "Kay, this is my brother Fredo." Fredo's drunkenness, Kay's confusion, Michael's confident embarrassment.

I also love several Vito moments: his look to the children during the Luca Brasi meeting. When he throws a peripheral look to Sonny when asking Johnny if he spends time with his family. When he asks Tom "what's that?", upon hearing the screams greeting Johnny's entrance. And, most of all, the gesture to Barzini to "hold up a minute" when he's about to challenge Tattaglia.