Serj Tankian on 'Personal' Film Soundtrack, State of System of a Down

Serj Tankian, who is best known as the spasmodic vocalist and surrealistic lyricist for art-metal group System of a Down, has always held a deep respect for film soundtracks. “When I’m exercising or driving, a lot of what I listen to is soundtracks,” he says. “I think it’s great that people are…