In the film I saw, both times I saw it, this scene:
30 INT. BRIDGE, USS ENTERPRISE - NIGHT 30
Kirk sits comfortably with a smile on his face.
Saavik faces him.
... I don't care if I'm senile. If I sit in this
chair and give the word you jump.
Plot a course for Kronos, Lieutenant.
I'm still in the chair, Lieutenant.
Other reactions. Kirk has taken command.
--was replaced with Kirk giving his little smile and saying "I'm still the Captain." And I'm not the only one to remember it. I've spoken with others who remember the same sequence.