I like the scene when the camera drew slowly close to Micheal while he was plotting the plan to kill M/S. You can see how cold he suddenly became. A new Don was already born. King Athur!

Yes, that scene is especially poignant and impactful. As the camera slowly draws closer to Michael, one can almost see the change in him from the college kid to a murderer. I think it symbolizes that those kind of chamges in our lives do come about slowly like the movement of the hands of a clock.

Speaking of which, ever notice how Mike whenever he sits down immediately crosses his legs....

I do have one more memorable scene..in GFII when Kay goes to see the kids and Connie hurries her up because Michael is coming. He walks through the kitchen and stares at Kay and his appearance has shockingly changed into the "Picture of Dorian Gray". There's a resemblence to the "old" Michael, but his evil deeds are written all over his face which is cold and hard.

Do you mean when he looks her up and down?

I didn't see any emotion in his face at all! He was totally cold and couldn't even be bothered to tell her to get lost and stay lost.

Tough question, because of the many Impactful Scenes. One that I feel is most important is the hospital scene when Mike goes to visit his father, and finds all the guards gone.

LOL. All the guards, and all the patients, too. That hospital was right out of Halloween II.

Most impactful scene: my favorite is when Michael deals with Carlo.

After the baptism, they're all exiting the church. Rocco appears and whispers something into Michael's ear. Michael then stares ahead at nothing for a second, then just his eyes shift over to Carlo.

FFW to the scene when Michael and his entourage enter Carlo's home, and Michael walks towards the camera and says, "You have to answer for Santino, Carlo."

Sonny's death, without it, Michael never takes over.

It does make me wonder though... Michael saw Sonny in action as the acting Don... he was concerned.... he saw that Sonny was a bad Don as Vito said later.

I don't think Michael ever thought Santino a bad Don, per se. I never really thought Michael was concerned about the fate of the Family...after all, his brother managed to get Michael out of the country and out of harm's way (the tragedy that befell Michael in Sicily only occurred after Santino's demise). Santino may or may not have been able to "get Sollozzo" without getting the Cop, but Michael figured it out first (in the book, the narrative said that Santino's biggest mistake was sending Michael to kill Sollozzo and McCluskey).

Santino was no diplomat, and in that kind of occupation, you need to be. Michael was, as was his father before him.