Zappa's Roxy movie out in October

October 30 seems to be the release date for the long awaited concert film from the Zappa/Mothers shows at The Roxy, Hollywood, December 1973. 
It will be released on Blue-Ray/DVD/CD. Here is one of the websites that announce the upcoming release:
http://www.jambase.com/Articles/126299/Frank-Zappa-Holy-Grail-Roxy-The-Movie-Due-In-October