Never-before-seen footage from Alpine Valley Music Theatre, which clocks in at two-and-a-half hours, will be broadcast to 550 movie screens on April 19.
 
http://www.hollywoodreporter.com/news/grateful-dead-1989-apline-valley-concert-movie-304064?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+thr%2Fnews+%28The+Hollywood+Reporter+-+Top+Stories%29

I saw the Dead at Alpine Valley - it was about 10 years before this show. :-D

Here's a link with details,  
 
http://www.fathomevents.com/concerts/event/gratefuldead2012.aspx
 
(Message edited by elwoodblue on March 26, 2012)