Blizzard has confirmed if you buy a ticket to see Warcraft at Regal Cinemas in the US, you will receive a free digital copy of World of Warcraft.
Warcraft film-goers will be handed a free World of Warcraft key
Various theaters outside the US will also offer the promotion. You can look over the list here for Europe, Latin America and Australia.
The firm also provided more information on the four movie-inspired transmorg items which will be handed over to players.
Logging into the MMO May 25 - August 1 will net players: the ornate sword and shield carried by the Alliance, the large Horde axe, and the staff of orc warlock Gul'dan.
Four new clips from the Warcraft film were released yesterday. The movie arrives in cinemas May 30 in the UK, and June 10 in the US.