[2] Bustos Sierra is also the founder and creative director of Debasers Filums, an independent film company based in Edinburgh and Glasgow.
[4] As a child growing up in Brussels, Bustos Sierra attended Chilean solidarity meetings, where he first encountered the stories of Scottish Rolls-Royce plant workers in East Kilbride who, in solidarity with the people of Chile, boycotted servicing the country's fighter jets following the military coup.
[6] Bustos Sierra was commissioned by the Scottish Documentary Institute's Bridging the Gap scheme to make Nae Pasaran as a short film in 2013.
[7] In March 2015, he launched a Kickstarter campaign to raise funds to turn Nae Pasaran into a feature-length film.
[9] Bustos Sierra tells the story of the Scots workers who defied Pinochet from the Scottish side, and, following five months of research in Chile, from Chileans—both oppressors and oppressed.