Trophies are for finishing certain achievements in games. All the games that were released in 2009 have trophies. But most of the ones released earlier didn't get a patch to enable them. They're sort of like bragging rights and aren't worth anything

Netflix you need to subscribe to and get the disc to watch the movies.

Game sharing is when you buy some games on your account and then swap the login with a friend to download each others games to share.


Also what is your PSNID?