Anyone coming from the North of England would understand the old saying, ‘Where there’s muck, there’s brass’, meaning there is value to be had in the dirty jobs that other people don’t want to do. This concept is explored in Waste Land, an award-winning documentary directed by Lucy Walker and co-directed by João Jardim and Karen Harley, with photography by Dudu Miranda, which gives a fascinating glimpse into life among the catadores (garbage pickers) of Jardim Gramacho, one of the world’s largest open landfill sites situated on the outskirts of Rio de Janeiro.