You don't really have to care about Star Wars or Angry Birds in order to tryAngry Birds: Star Wars. It's Starbucks' free app of the week, so there's not much investment required on your part.
Don't worry, you don't even need to care enough to get up and go to Starbucks. While codes for the game are available on cards in stores, you can also get a free copy of Angry Birds: Star Wars through the Starbucks app.