Yes it is an excellent film

But we dont KNOW there wasnt any reprisals against Michael just because we didnt see it, and there is the question, how would they know for sure it was corleone? later on they would realise when they see all the other dons dead it must be him, but by then Michael had moved to Nevada. only clemenza was left in NY and you know what happened to him

Sonny - Well then, business will have to suffer, all right? And listen, do me a favor, Tom. No more advice on how to patch things up, just help me win, please