HBO will debut Mariela Castro's March: Cuba's LGBT Revolution on Monday, November 28.

Directed by Jon Alpert (Baghdad ER), the documentary follows Mariela Castro, the daughter of President Raul Castro and a member of Cuba's National Assembly, as she calls for greater rights for members of the LGBT community.

“[T]he documentary spotlights gay, lesbian, and trans activists through revealing stories of pain, love, strength and perseverance, all told against a rapidly changing social and political backdrop,” the film's description reads in part.

The documentary follows Castro as she and other activists prepare for a celebratory Gala Against Homophobia and Transphobia.

In 2012, Castro introduced a proposal to legalize civil unions for gay and lesbian couples, saying that her measure would provide “options” for gay couples similar to those available to straight couples.