Diego Céspedes’ “The Mysterious Gaze of the Flamingo” has been named the best film of the Un Certain Regard section of the Cannes Film Festival, the Ucr jury announced on Friday.

The film follows an 11-year-old girl growing up in the early 1980s in a queer family in a small Chilean mining town, where suspicion is growing over a mysterious disease that is rumored to be spread by glances between gay men.

Simón Mesa Soto’s “A Poet” won the Jury Prize, the second-place award.

The directing award went to Tarzan and Arab Nasser for “Once Upon a Time in Gaza,” while Cléo Diara and Frank Dillane won the performance prizes for “I Only Rest in the Storm” and “Urchin,” respectively. Writer-director Harry Lighton won the screenplay award for “Pillion.”

Un Certain Regard focuses on films from younger directors and often spotlights experimental work. This year, Ucr was also the...