Several scenes actually:
Qui-Gon Jinn dying.
Darth Maul dying.
Shmi Skywalker dying.
Jango Fett dying.
Count Dooku dying.
General Grievous dying.
Nute Gunray dying.
Mace Windu dying.
Padme Amidala dying.
Really wish there were a lot more scenes like that. ;)