If the YouTube counter is anything to go by, you've probably already seen Beyond Black Mesa, the Half-life fan film. In which case you probably want to watch it again - or you're sadly behind the times. Everybody through the jump!
Filmed over two years by a group of friends with a Canon HV20 and $1,200 budget, Beyond Black Mesa tells the story of Adrian Shephard and his comrades blowing stuff up.
More info is found on the film's website, but all you really need to know is that it's astoundingly gorgeous. Check it out below.