A Half-Life movie based on Gordon Freeman would suck. But this short film - the first in a series - is not about Gordon Freeman. And, what do you know, it doesn't suck, either.
Directed by The Purchase Brothers, Escape From City 17 was supposedly shot with "no money, no time, no crew, no script, [and]the first two episodes were made from beginning to end on a budget of $500". So they did a few thousand bucks' worth of work for free, then, because for a fan movie, this is freakin' amazing.