I am just as likely to see the movie as I am to buying/playing the game.
"Blizzard has confirmed to us that this give-away includes all of the latest expansion packs and a free month of game play, though this last applies only to new players. Current players can still score a free copy of the game to share with a friend or launch a second account if they so desire.
Blockbuster movies have leveraged tie-ins to physical toys, food, clothing, and collectible glasses ever since the first Star Wars movie demonstrated that these additional products could be formidable sources of revenue. Video games, in contrast, have tended to get the short end of the stick — the list of great video game movie adaptations isn’t a long read.
Blizzard, in contrast, has come up with a method of tying the upcoming World of Warcraft movie directly into the already-existing World of Warcraft game. First, existing players who just log into the game between May 25 and August 1 will receive new transmogrification (transmogs for short). These are visual skins that make your weapons or armor look different, but don’t actually change anything about your character’s in-game performance."