CULVER CITY, CA: Sony Pictures Releasing International (SPRI) recently launched a Twitter-based game promoting the upcoming summer blockbuster Terminator Salvation.

The game allows fans worldwide to communicate with each other and decode messages to earn points and rise in rank within the Resistance Army, which represents the group of humans that fights against machines in the movie. A companion blog supplements the game and hosts the game's leader board.

"In [the movie], mass communication is vital, ...