Online rentals and purchases of movies is still just a tiny fraction of the overall pie, but Warner's latest effort to expand that is coming from an unusual direction, offering its highest profile flicks as apps for iPhones and iPads. The Dark Knight and Inception are the first two releases out of the gate, offering free apps with some bonus content and the first five minutes of the movie, then charging $9.99 and $11.99, respectively to unlock the rest. According to Warner, it offers a different experience than simply purchasing the flick over iTunes because of the extras which include Twitter and Facebook
