I am also very disappointed to learn the Police are not part of the release.
If you watch the linked video promo with Stewart and the included clips of the Police, it certainly gives you the distinct impression that our favorite trio will be featured in the video.
At the end it says, "US Festival 1982: The 'US' Generation, Coming Labor Day 2012
http://www.youtube.com/watch?v=hqDq37ZvRboThere's an update from September on Facebook stating that distribution negotiations are still in the works. So we may still see the 1982 release with the Police.
https://www.facebook.com/usfestmovieBTW, Ian Copeland has a great account of how the Police got a $500,000 fee to play US. According to Ian, that was many times the normal fee. Bill Graham, the promoter, was furious with Ian. But the Police anchored the festival and attracted others to join in.
Keep in mind, that's a half-million dollars 31 years ago. That's huge.