A more recent addition to the "First Person Films" post... described by the creator as a "Left 4 Dead" short film, essentially one extended POV shot. Enjoy.
Ah, vulnerable children in survival horror contexts never gets old, eh?
And as a bonus, here's Prodigy's "Smack My B*tch Up," a (NSFW) first person music video that came to mind when watching the above. I remember watching this on MTV back when they still played music videos...
Look at what the first person mode can do! And look at how narrowly we use it in games! Loooook!