Filmmaker Cristina Costantini is leaving the Sundance Film Festival with an award and with distribution already secured for her documentary Sally, about the late astronaut Sally Ride, the first American woman in space.
Costantini won the 2025 Alfred P. Sloan Feature Film Prize, an award selected by a jury of film and science professionals and “presented to an outstanding feature film focusing on science or technology as a theme, or depicting a scientist, engineer, or mathematician as a major character.” Sally Ride, who earned a Ph.D.
in physics at Stanford before joining NASA’s space shuttle program in the late 1970s, more than qualifies according to the Sloan Prize criteria.
But the documentary constitutes much more than a recitation of Ride’s credentials. It’s also the story of her long relationship with romantic partner Tam O’Shaughnessy, a loving bond Ride kept secret until her death.
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