The visceral experience of seeing a movie in three dimensions, coming at you in the theater, is obviously here to stay, because it is a unique experience. I think that kind of format is only appropriate for some genres, but I'm all for it.
Even if it was a difficult operation to copy a song, it only takes one person to do it. After that the spread of the song via the Internet or other means of propagation is only limited by the honesty of the users.

