His movie Still Black: A Portrait of Black Trans Men is one of his most cherished and credited works. The documentary features the stories of six black transmen from diverse backgrounds in different parts of the United States at different stages in their lives. Ziegler interviews activists, teachers, students, and more to tell their story of transition, the relationships they have with family as well as the outside world, and how being a black trans man has negative stereotypes and stigmas not only from being trans, but also from being a black man. It aims to empower black trans men while also making their struggle known to heteronormative society as well as the LGBTQ community. It shows how the intersection of race, gender, and sexuality all come into play in the LGBTQ community as a whole.