A few weeks ago, while watching megastar DJ Z-Trip rock a tailgate party for a few UCLA Bruins fans, the jocked excitedly told me that a sweet freshman girl, big cheeks painted with yellow and blue team logos, requested he play some dubstep. As the crowd of clearly mainstream coolege football fans went bonkers to the low end beats, I was struck that this genre’s time in the “phenomenon” spotlight is almost up.

A new film, Bassweight, is coming out in the UK this month. With dubstep superstars Mary Anne Hobbs, Skream, Benga and Kode 9 all partipating, the film is doubtlessly a credible look at the music’s near decade-long history. But the angle being reported by The Guardian is that Bassweight focuses not on the past, but on the …