I just got back from seeing Tropic Thunder a few hours ago - great movie and Tom Cruise is a revelation in it - but this little trivia about dvds is interesting and was wondering if it were true. One of the main characters, the one with the glasses, says that the reason everyone was switching from normal dvds to blueray was because PORN companies were doing it, and since they are a large market they the normal movie players thought they should also switch to the blueray because the porn makers were. It there any truth to this ? DO movie companies really watch porn trends to see where dvd sales and home entertainment will take them ?