When filmmaker Heather Lenz first came across Yayoi Kusama's art in the early 1990s, she says that there was only one catalog of the artist's work. Kusama is now the world's top-selling living female artist.

Lenz, who studied art and art history, before gaining a masters degree in filmmaking at the University of Southern California, then set out to make a film about an esoteric artist, whom she considered "misunderstood and under-recognized" in the United States at the time.

Seventeen years after its conception, Lenz's film, "Kusama: Infinity," premiered at the 2018 Sundance Film Festival. It tells the story of Kusama's battles with racism, sexism and mental illness during her 70-plus years creating works of art.