Need some denoise/degrain help

[nibus]

Hi guys, I could use some help denoising my Wolverine bluRay. It's very grainy and what I usually use isn't cutting it.

I usually just apply a light MVdegrain via this SMDegrain script:

http://forum.doom9.org/showthread.ph...ight=smdegrain

It does a great job at light denoising and is also pretty fast.

LoadPlugin("C:\Apps\Multimedia\Video\MeGUI\tools\dgavcindex\DGAVCDecode.dll")
AVCSource("F:\Encode\BluRay\X4\X4.dga")

crop( 0, 132, 0, -132)

Spline36Resize(1280,544) # Spline36 (Neutral)

SMDegrain(tr=1, thSAD=200)

Most of my BluRays have worked fine with a value of 200, but this one is particularly grainy and could use a higher value:

SMDegrain(tr=1, thSAD=200)

But unfortunately when I raise the value higher than 200 it adds blockiness to the picture during fast motion scenes (present with 1080p and resized 720p):

SMDegrain(tr=1, thSAD=400)

I don't want to obliterate the grain and detail, but I would like to be able to increase the denoising higher than the thSAD=200 screenshot shows.

I don't know a whole lot of denoising techniques so I'd really appreciate some help from you encoding wizards.

Here is the 1080p clip from which those screenshots were taken:
http://dl.dropbox.com/u/5637223/wolverine.demuxed.264

Any help would be much appreciated!