If you attended last night's history-making "The Big Four" cinema concert event broadcast "live" from the Sonisphere Festival in Sofia, Bulgaria, Slayer wants you to log onto and let them know all about your experience.

And, if you took photos at your local theatre during the event, Slayer would love to see those as well, so post them.

Share your photos and stories on Slayer's special "Metal at the Movies" fan photo page here