TMP: Kirk's reveal from the skybus.
TWOK: Kirk and Carol's conversation on Regula.
TWOK: Kirk looks over to Spock's station and notices he's gone.
TWOK: Kirk hugging David
TSFS: Bones talking to unconscious Spock on the Bird of Prey
TVH: Spock to Sarek: "Tell (Mother) I feel fine."
TFF: The entire "brainwashing" scene, especially Bones euthanizing his father, and Sarek's response to Spock's birth. "So Human."
TUC: I can't think of one.
There are probably others, but I don't want to monopolize this.