If you’re familiar at all with the premise of Portal then you’ll instantly recognize the heroine of this short film as Chel, a test subject imprisoned by the Portal corporation and forced to ‘test’. No Escape differs from the game in that it’s a live action piece by filmmaker Dan Trachtenberg.
This short took 1.5 years to complete and was made after the first Portal game. I won’t say any more, you just need to watch it. It’s well worth your time.