The best results I've had are as follows:
Use Virtualdub: Frame Rate:IVTC adaptive.
**This seems to remove a large amount of the interlaced frames (their removal is base on them being duplicate frames)
**My source is showing 2 of every 5 frames is interlaced ( I assume this is standard for telecined video)
Then I use this filter for the remaining interlaced framesDeinterlace - area based
**As with others it has a Show deinterlaced areas only option that will quickly show what is being monkied with.
**I like this one the best because I can really get it to do, what seems like, the least amount of damage. Also, the setting I'm using only seem to mess around with a handful of pixels on the frames that do not require any deinterlacing.
Is there a way to get a deinterlace filter to just adjust the interlaced frames & then MAYBE apply the VirtualDubs IVTC to remove the duplicate frames thus removing a good bit of the frame that were originally interlaced?
I know a lot of people doing this process have suggest a variety of deinterlacing filter but this far after using them I have not been very impressed. I'm almost to the point of only using color correction & sharpening filter that handle interlacing a producing an 24 fps somewhat interlaced version.