If you missed the second Crossroads Guitar Festival last weekend -- Eric Clapton's now-annual shredder convention in suburban Chicago -- or if you just want to re-live the experience (with a much better view, perhaps), the whole thing was filmed and will be shown in movie theaters across the country and throughout the Chicago area at 7:30 p.m. July 27. Tickets are $15 plus a service charge. Check this list of area theaters and click for tickets.