A couple months back, the iTunes Store introduced a couple of new formats: iTunes LP for music embedded with extra content (ostensibly to promote buying albums rather than singles) and iTunes Extra for movies embedded with extra features (presumably to woo folks who would otherwise buy DVDs for the special features). I missed Inglourious Basterds when it was out in the theaters this fall, so I bought the iTunes Extra version to see how it works on my computer screens and my AppleTV.
