Short film X-Story, by Vitaliy Shushko, has everything you need for a good action-adventure tale: a robot arm, a Tron cycle, a man peeing off a cliff, death-defying leaps, and enough Xs to challenge any X-Men movie.
There’s a bit of violence—and the above-mentioned peeing—that makes this short a bit mature, just as a warning. But it’s also a ton of fun.
