In 2007 an Italian film festival invites Mouse on Mars to score a film of their choice. The organizers claim to be able to clear the rights for any movie the band chooses. Werner Herzog’s fictional documentary Fata Morgana, which merges footage of several desert explorations by Herzog and his team into one continuous association, has long been a band’s favorite. The film comes with a soundtrack by Mozart, Leonard Cohen, Third Ear Band and field recordings. Andi Toma and Jan St. Werner are sent a DVD to Düsseldorf and start working. The idea is to score the film in real time so instrumentation has to be readily at hand: guitar, percussion, electronics, mouth harp, pedals, software, tapes, samplers. Once the arrangement for the three-part film is sorted Mouse on Mars bring their score to stage. Herzog Sessions is performed twice: first when the band still thought the rights had been cleared, and a second time at London’s Southbank Center knowing that Herzog would have never approved a new score.