To play the trivia game you need to find all six "Watcher" symbols. 
The symbols are hidden (though very easy to find) in the Main Menu, 
"Captions" screen, "Sneak Peek" screen, "DVD-ROM" screen, 
"Audio Commentary" screen, and "Deleted Scenes" screen. 
Press ENTER to read each one; once you have read all six you can 
play the Trivia game. There are three levels of play.