The soundtrack to the upcoming documentary The US vs John Lennon will include a previously unreleased Lennon song, Attica State, recorded at the John Sinclair Freedom Rally in Ann Arbor, Michigan, in 1971.The Capitol/EMI release, set for a September 26 release, will also feature such tunes as Imagine, Instant Karma (We All Shine On) and Happy Xmas (War is Over), as well as an instrumental version of How Do You Sleep.?We were allowed to ?strip? lead vocals from Lennon?s original recordings, so that we could use his own instrumental work as the score for the movie?, said David Leaf, who co-wrote, directed and produced the film along with John Scheinfeld. ?I think it's the first time that John?s solo catalog can be heard in this way.? Additionally, the packaging will include liner notes written by Lennon?s widow, Yoko Ono. The controversial documentary explores the government?s attempts at silencing Lennon as a proponent of humanitarian and anti-war causes, which included FBI surveillance, wiretapping and deportation proceedings.