>>7
Yes, I love Solaris! Although I had not at all associated it with cracky I can see how you could a little. I'd put Tarkovsky's Stalker in the same bracket.

>>8
You're right about Lolita, it's more related to the extended crackyverse feelings than the official canon mythology.

I would also add Sleeping Beauty (2011) as an important thing to watch, even though you'll totally disagree with its conclusions and implications. I suppose Taxidermia is relevant as well (and I'd particularly recommend it for Koc if he hasn't seen it).