Two of the people involved, Tim Smit and Steven Roeters, recently won a film competition landing them a meet-and-greet with Discovery Channel's Mythbusters. In an article from their college campus paper following the competition, the pair mentioned they were hard at work on a film titled What's In the Box? So, unless they forgot to mention Valve contracted them for a viral marketing ad, this one remains labeled as an homage of sorts.
The official site for the short film seems to indicate the story isn't finished yet, and we honestly cannot wait to see what happens next. Watch the incredible short after the break.