Celebrated science fiction writer Ursula K. Le Guin left behind an extraordinary legacy when she died earlier this year. As the trailer for the upcoming doc “Worlds of Ursula K. Le Guin” stresses, the author’s work helped legitimize science fiction as literature and made the writing community a safer place for women.

“When I started writing, the sort of basic assumption about fiction was that men were at the center,” Le Guin recalls in the clip. But she didn’t just have to overcome sexism. “What Ursula was having to navigate was the societal prejudices against science fiction, against the fantastic,” Le Guin fan and fellow sci-fi/fantasy author Neil Gaiman observes. Le Guin wasn’t just a female writer trying to break into a boys’ club — she was a female writer of a marginilized literary genre trying to break into a boys’ club.

“I’d like us not to be resigned, but to be rebellious,” the “Wizard of Earthsea” author says in archival footage. “I want to see science fiction step over the old walls, and head right into the next wall and start to break it down, too.”

In 2000 Le Guin was named a “Writers and Artists” Living Legend by the U.S. Library of Congress. She was also honored with the PEN/Malamud Award, the Medal for Distinguished Contribution to American Letters, four Nebula Awards, and two Hugo Awards throughout her career.

“20 Weeks” writer-director Leena Pendharkar will helm a film adaptation of Le Guin’s “The Telling.” The 2000 novel centers on Sutty Dass, who discovers a lost culture and religion when she travels to another planet.

“Worlds of Ursula K. Le Guin” marks Arwen Curry’s feature directorial debut. Described as an “intimate journey of self-discovery,” the project was filmed over 10 years. Featuring interviews with authors such as Margaret Atwood and Michael Chabon, the documentary was crowdfunded by more than 3,000 backers.

“Worlds of Ursula K. Le Guin” will premiere at the Sheffield Doc/Fest in Sheffield, UK June 10.