Watch I Don't Know (1971) Official Trailer

A truly major work, I Don’t Know observes the relationship between a lesbian and a transgender person who prefers to be identified somewhere in between male and female, in an expression of personal ambiguity suggested by the film’s title. This nonfiction film – an unusual, partly staged work of semi-verité – is the first of Spheeris’s films to fully embrace what would become her characteristic documentary style: probing, intimate, uncompromising. Preserved by the Academy Film Archive in 2014.