Portal: Survive! is a live-action short film based on the Portal game, and its tie-in comic Portal 2: Lab Rat.
When Gordon Met Chell
Portal joins forces with Half-Life in this short film called When Gordon Met Chell.
The first minutes of the original Half-Life are brought to life in this live action short, Half-Life: Origins.
Portal 2: Lab Rat - Part One
Read part one of Portal 2: Lab Rat, a comic created by Valve to bridge the old and new game in the series.