In Filip Remunda’s documentary “Happiness to All,” the Czech filmmaker portrays a characteristically off-kilter protagonist – and one who projects invincibility somehow tinged with doom. The film made its world premiere this week at the Ji.hlava Film Festival in the Czech Rep., where it won the best Central and Eastern European documentary award.

Vitaly, a former nuclear physicist and record holder in extreme cold-exposure training, makes his living as a construction worker on the fringes of Siberia, barely eking out a living. While his parents, still prominent scientists, reminisce about the glory of the Soviet regime they helped build, Vitaly finds his passion for Mother Russia on a different frequency.

Although also an avowed patriot himself, who spends his time rebuilding the foundations of rotting houses, Vitaly focuses on his video blog espousing his home repair skills and the evils of capitalism. But the energetic, foul-mouthed galoot seems mainly...