After an electrocution accident maimed and almost killed him, 30-year-old Eduardo Garcia was determined to regain his former life as a chef and outdoorsman in Montana. Jane Jacobs challenged New York power player Robert Moses in her fight to preserve city neighborhoods. Bill Nye is on a mission to defend science from climate change deniers and religious fundamentalists. And, at almost 87, Dolores Huerta remains an undaunted organizer for social justice.

Mariah McGregor and Willie Bologna ready for action at kids' workshop. — Alison L. Mead

The 17th Martha’s Vineyard Film Festival celebrated these and other determined souls in a four-day program that brought full houses and standing ovations to the Chilmark Community Center, Chilmark School and Pathways Arts over the weekend.

Managing director of the festival Brian Ditchfield called it the best year yet.

“I know I say that every year,” he added, “but it thrills me that I do have that feeling every time.”

Ms. Huerta, a pillar of the labor and civil rights movements and the woman who coined the rallying cry “Si, se puede” (Yes, we can), was one of several documentary subjects who traveled to the Vineyard for the festival, taking part in question-and-answer sessions after screenings.

Film subject Nick Briggs and director Taylor Toole discuss short film After Work. — Alison L. Mead

The film Dolores, directed by Peter Bratt, aims to bring Ms. Huerta’s life and achievements out of the shadow cast by Cesar Chavez (1927-1993), the charismatic activist with whom she founded what became the United Farm Workers union.

But in a conversation with the Gazette Friday afternoon at the Harbor View Hotel, Ms. Huerta said she does not feel marginalized.

“I have been very well recognized for the work I’ve done,” she said. “I have the Presidential Medal of Freedom, I have the Roosevelt Award from President Clinton, there are nine or 10 schools named after me, I have honorary doctorates.”

Ms. Huerta is not resting on any of these laurels. Her Dolores Huerta Foundation, which campaigns for social justice, is receiving more attention as a result of the film, and she’s ready to seize the opportunity. “I’m getting more requests for speaking engagements,” she said with a smile.

After Friday’s screening of Dolores, Ms. Huerta took questions and taught the community center audience a new rallying cry.

And, Ms. Huerta added, people who have seen the documentary are asking her “Can you please teach us what you’re doing?”

After Friday’s screening of Dolores, Ms. Huerta took questions and taught the community center audience a new rallying cry: “Who’s got the power?” she asked. “We’ve got the power,” the crowd responded. “What kind of power?” “People power.”

“We are just one human race,” Ms. Huerta told the room. “We have to support each other, protect each other, work for each other.” She also observed, “We will never have peace in the world until women take power.”

The weekend featured some short subjects — including a program dedicated to Vineyard filmmakers — and a handful of feature films, notably The Last Word, starring Shirley MacLaine as a controlling woman who changes her ways in order to have a more appealing obituary when she dies.

Wide-range of programing, though documentaries are heart of film festival. — Alison L. Mead

But documentaries are the meat of this festival, and audiences feasted on true stories from the U.S. and abroad.

Not for the squeamish, Charged: The Eduardo Garcia Story is an unflinching look at how Mr. Garcia, with the help of his best friend Jennifer Jane, overcame grievous injuries and testicular cancer to become a celebrity chef. As hospital scenes give way to Mr. Garcia’s recovery, we see him using his prosthetic arm and hook to tie fishing flies, shoot arrows and crack eggs.

“I really feel this urgent need to say thanks at large,” he says in the film. Mr. Garcia, Ms. Jane and director Phillip Baribeau also took questions from the audience after the movie. “I hope it inspires people to look within and say, ‘What do I want to do?” Mr. Garcia told the crowd.

Daniel Houck of Laurelville, Ohio is another man on a mission, whose obsession with crafting a replica of Niccolo Paganini’s famous Guarneri violin is chronicled in the suspenseful documentary Strad Style. Filmmaker Stefan Avalos, who appeared with Mr. Houck after the screening, told the audience he had been working on a documentary about violins when he got word of this rural Ohio instrument maker.

Living like a hermit in a rickety, unheated house, Mr. Houck had no formal training in making violins. A believer in magic, he burned candles and incense to invoke the spirits of Antonia Stradivari and Giuseppe Guarneri, the great luthiers of 17th-century Cremona, as he struggled to recreate Paganini’s famously resonant Guarneri Cannone for the Romanian violin virtuoso Razvan Stoica. Along the way, Mr. Houck also begins to emerge from his solitude and confront his fears.

Chef Robert Lionette served up local food all weekend. — Alison L. Mead

Other documentaries focused on Native American subjects, the life of James Baldwin, The New York Times obituary writers and the writer and farmer Wendell Berry and spiritual leader Ram Dass. Indeed, there was a subject for everyone and the post-screening discussions continued out in the hay cafe and during fireside chats.

The festival also featured locally grown meals, live music from an assortment of Island performers, and workshops for kids to begin training the next generation of filmmakers.

Festival founder and executive/creative director Thomas Bena said he was grateful to all the filmmakers and to the Island community.

“On Friday night we had a Brazilian trio perform and then Woody and Tobias Vanderhoop and the Black Brook Singers performed before the film Rumble: The Indians Who Rocked the World," he said. "Honestly, it’s a dream come true, this mixing of Island subcultures that come together around these films.”

Early Monday, Hilary Dreyer, the operations manager and filmmaker liaison, said goodbye to the last guest of the weekend, film subject Hon. Claudette White from the movie Tribal Justice.

“She couldn’t get over how welcomed and included she felt by our entire community,” Ms. Dreyer said.

More photos from the film festival and sketches from the Hay Cafe.