Brad Pitt shows up for Muse's concert at the London premiere of 'World War Z' in Leicester Square and talks about their involvement.
'When we started making this film a couple of years ago we discussed trying to find a 'Tubular Bells' which is, if you remember, that's the theme song to 'The Exorcist'', he explains. 'We wanted to find something that had that same kind of feeling. Lo and behold, these guys, our friends Muse, were reading the book at the same time that they were writing their album 'The 2nd Law' and, lo and behold, there is song on there called 'The 2nd Law' that is so reminiscent of 'Tubular Bells'. they at the same time were big fans, it just worked out beautifully.'