Finally found, albiet brief, video of the giant squid. Spectacular! Although it is unlikely, despite what the reporter states, that Giant Squids obtain sizes of 50 feet. As I mention in this post that covers everything you wanted to know about the Giant Squid, the longest scientifically recorded length of a Giant Squid is 42 feet.
UPDATE: Go watch this video! Skip ahead to 1:00 to see a much longer set of video of the encounter. Not sure how long this will be up.
Anyway to guesstimate how much it cost to get this footage? What does the reported 100 missions and 400 hours underwater cost? Obviously worth it for Discovery.