This one is topical as it is attacking my ISP, iinet from Western Australia. It appears they were not game to take on the bigger government owned Telstra so they targetted the smaller ISP iinet as they thought they could set a precendent in forcing an ISP to do their dirty work for them.
AFACT Uncle Sam's puppet in iiNet trial
http://www.smh.com.au/digital-life/computers/blogs/gadgets-on-the-go/afact-uncle-sams-puppet-in-iinet-trial-20110902-1jp4w.html
the movie industry controls a lot of money
and - big media probably has a lot more
they are pulling all the strings to insure their bottom line
if they were serious about pirating, they'd go after china :P
i think bandwidth is more important to them than movies