I have been producing and mixing everything from indie pop to Indian dance to symphony orchestras for more than twenty years. I was the producer of The Playthings' album Consumed (1989), which featured Age of Stupid director Franny on drums, aged 17, and was one of the best things I'd done to that point, but sadly didn't get released as the record company folded.
Age of Stupid was the first time I have ever mixed in 5.1 (instead of mixing into two stereo speakers, you are mixing into 6 speakers for cinema).