The Long Walk, Svilen Dimitrov, 2002

Schrödinger's Cat, Chavdar Yordanov, 2012

One can even set up quite ridiculous cases. A cat is penned up in a steel chamber, along with the following device (which must be secured against direct interference by the cat): in a Geiger counter, there is a tiny bit of radioactive substance, so small that perhaps in the course of the hour, one of the atoms decays, but also, with equal probability, perhaps none; if it happens, the counter tube discharges, and through a relay releases a hammer that shatters a small flask of hydrocyanic acid. If one has left this entire system to itself for an hour, one would say that the cat still lives if meanwhile no atom has decayed. The psi-function of the entire system would express this by having in it the living and dead cat mixed or smeared out in equal parts. It is typical of these cases that an indeterminacy originally restricted to the atomic domain becomes transformed into macroscopic indeterminacy, which can then be resolved by direct observation. That prevents us from so naively accepting as valid a "blurred model" for representing reality. In itself, it would not embody anything unclear or contradictory. There is a difference between a shaky or out-of-focus photograph and a snapshot of clouds and fog banks. —Erwin Schrödinger, Die gegenwärtige Situation in der Quantenmechanik (The present situation in quantum mechanics), Naturwissenschaften (translated by John D. Trimmer in Proceedings of the American Philosophical Society)

another recommendation from Paul Kirby.

Zodiac, Zdenka Doycheva, 1974

Sunday, Nikolai Todorov , 1980

De Facto, Donyo Donev, 1973

Apple, Todor Dinov and Stoyan Dukov , 1963

Horoscope, Zdenka Doicheva, 1974

The Scissors and the Little Boy, Hristo Topouzanov1973

Pictures from an Exhibition, Hristo Topouzanov, 1963

That's no way to behave in a museum, now. You stop that.

Esperanza, Ivan Andonov, 1967

Groovy experimental film from 1960s Bulgaria. Reminds me of Stan Vanderbeek.

Banished from Eden, Todor Dinov,1967