Diego Sarmiento's feature debut as director and producer, Green River. The Time of the Yakurunas was premiered at the Berlinale Forum 2017 and the MoMA Doc Fortnight 2018.

Mothers of the Land (2019), his second feature documentary was premiered at the 69 Berlin Film Festival. In 2020, HDPERU won the Berlinale Talents Footprints - Mastercard Enablement Programme award, having Wim Wenders as president of the jury, with The Seed Project where he took the film to schools in rural communities in the Peruvian Andes, as an impact campaign. Veins of the Amazon (2021), his third feature documentary was premiered at the 64 DOK Leipzig.

Diego directed several short films, two of which premiered at the Berlinale: 8Earth's Children8 (Generation K-Plus 2014) and Sonia's Dream (Culinary Cinema 2015).

Diego studied Media Production at the Universidad Catolica in Peru and a Documentary Filmmaking Master at EICTV in Cuba.