I assume this Alexander Popov is a fictional character, as a quick Google search didn't turn up anyone with a matching profile.

Back in the day I used to prefer amber-on-black terminals over green-on-black. But not now, it seems.

Such a weird coincidence. I stepped out of my house a few minutes ago to buy ice cream, and I bump into a Ukrainian friend of mine whose last name is “Popov”. I come back to my computer and immediately click this link on HackerNews and see the name Popov again. Weird. I sent this link to him and he says: where did you find this? And he says: his family name is related to people who invented certain radio components in the Soviet Union. Such a strange moment of synchronicity.

I studied in the same school :) I can't confirm geometric tattoos, but the school definitely taught me to enjoy the art of science!

Also the game.

Is there a place online to buy/watch this film?

This entire thing smells fictional. But, then again, as a frequent visitor to Joshua Tree during all the years mentioned, there is a fairly extreme new age culture there, kind of on their own advanced journey. Look up "The Integratron" for one such manifestation of them. Harmless, I think.