We were wondering how long it would take to get a high definition blockbuster movie onto Xbox Live Video Marketplace, and it looks like Microsoft and Major Nelson just got in under the wire for 2006, adding Superman Returns yesterday. Weighing in at 7 GB for the 720p HD version (2 GB in 480p SD... for the masochists out there) for the 154 minute movie, it's finally time to clear off some of the Xbox 360 demos we downloaded and see if digital distribution works better in 2007 than it did last year. We'll be back with our impressions of the service, now that they've posted something we want to watch on our HDTVs.