Harjo 's first feature documentary , '' This May Be the Last Time '' , is based on the story of Harjo 's grandfather , who disappeared in 1962 in the Seminole County town of Sasakwa . It explores the subject of Creek Nation hymns and their connection to Scottish folk , gospel and rock music . The film premiered at the 2014 Sundance Film Festival and its distribution rights were subsequently acquired by AMC/Sundance Channel Global for the Sundance Channel . His third feature film , '' Mekko '' , a thriller set in Tulsa , premiered at the Los Angeles Film Festival in June 2015
2014 Sundance Film Festival
2014 Sundance Film Festival
Sterlin Harjo