Thanks to slashdot, I tripped over this
gizmodo exclusive - video shootings from inside the LEGO factories. Impressive that they were allowed to film in there, I always thought LEGO were very secretive about their fab process. The clips are pretty short and the voice recording from the tour guide isn't super good, but it's impressive nonetheless.
Bonus info: LEGO is a contraction of "LEg GOdt" - transobliterated, "play well".