Here's an incredibly awesome fan-made short film based on the video game Portal. The short was directed by Dan Trachtenberg. This is the same Tachtenberg that previously directed the short More Than You Can Chew, and is also a host on the video web series The Totally Rad Show. This short made it's premiere at Comic-Con this year, and it's very impressive. If you haven't seen it yet, I think you're going to be pleasantly surprised by it's greatness. Check it out and tell us what you think!