After making its Metal Injection premiere yesterday, fans can now watch the first of three behind-the-scenes video clips from Opeth's 20th Anniversary show at London's Royal Albert Hall below.

The landmark performance of Blackwater Park in its entirety was filmed along with an on-the-road documentary for the September 21st DVD set In Live Concert at the Royal Albert Hall, and we've got a clip straight from the set showcasing Mikael Akerfeldt describing the experience of playing the iconic venue. Explains Akerfeldt, "You look up and it seems so massive... it was unreal." Click play below to get the full assessment, and go RIGHT HERE to get more details on the DVD and the various pre-order packages available, which includes a very cool limited edition vinyl/ DVD set.