King Jammy is the Rick Rubin of Jamaica. All of dancehall's greats, from Shabba Ranks to Elephant Man to Chaka Demus, have records bearing his stamp. But what goes into that stamp? In the DVD accompanying King At The Controls, you'll see a lot of knob-twiddling for one thing. The King's compadres joke about how the audiophile perfectionist could fine-tune forever (see Jammy playing with buttons... see Jammy playing with more buttons). Of course, as a producer, King Jammy became known for both innovating reggae and creating the 'digital riddim.' The fun of this simple, tight documentary is learning about the history surrounding quiet, baby-faced Jammy's storied studio, where Beenie Man knocked out a whole album straight when he was just a likkle youth. A very natural look at the Waterhouse ghetto and Jammy's relationship with the reggae scene (then and now), featuring interviews and raw-as-fresh-fish live dancehall throwdowns. King At The Controls screens Sunday (August 6) at the Ontario Place Cinesphere as part of the Irie Music fest.