Hey, you seem to have taken down your video on youtube. Did you get this problem fixed?... I had a creaking noise in my new MBP 13" 2011 model. No noise when moving the screen in motion, but if the screen needed adjusting, it sounds like its catching slightly and I hear a soft creak.
I closed the macbook and looked at the clutch, the gap on either side between the black plastic and the aluminium wasn't even, I gently pushed my fingernail down one side and it moved a fraction. Now no noises!
Might have been catching on one side, or moving it slightly pushed lubricant inside the clutch joint. Anyway, good luck with yours.