LOL Built in fix! That’s great!

If the smoothing is levels-targeted, I may suggest twice of what you just did? 1x leaves some residue (viewed when angling this laptop’s LCD screen) but 2x should eradicate it.

I noticed the glare on Belloq’s forehead, so I’m guessing this problem is throughout the DVD. Also, I see edge enhancement there, too (thick darker/lighter blue sky edging the actors). I’m amazed that faux coloring didn’t carry over to your regrade. Built in fix, too?