SANTA MONICA, Calif. — The road comedy "Little Miss Sunshine" won best picture and three other prizes for independent films at the Spirit Awards on Saturday, one day before competing for Hollywood's top honors at the Academy Awards.

The hilarious though dark-tinged tale of a deeply dysfunctional family also won the supporting-actor award for Alan Arkin; best director for the husband-and-wife team of Jonathan Dayton and Valerie Faris, and best first screenplay for Michael Arndt.

Arkin won for his role as an obscenity-spewing, heroin-snorting grandfather training his granddaughter (Abigail Breslin) for a saucy dance performance at a children's beauty pageant.

"If my mother was here today, if she was alive, she would think: 'Is he going to find something to fall back on, like a teacher's license?"' Arkin joked at the awards ceremony, which was held in a beach tent.

He thanked his co-stars, calling them "the most cohesive, loving" group of actors he had worked with.

Arkin's competition for supporting actor at the Spirit Awards included "Little Miss Sunshine" co-star Paul Dano, who played his grandson, a morose youth maintaining a vow of silence.

Arndt thanked organizers for having a category for first-time writers.

"Anybody who sits down to write a screenplay without any prior credits, I think it's an act of insanity," Arndt said.

The awards honoring the best in independent film were the latest in a string of honors for "Little Miss Sunshine" since its premiere at last year's Sundance Film Festival.

Its Oscar nominations included best picture and supporting-acting slots for Arkin and Breslin.

"I can only hope that filmmakers out there trying to get their first film made or their second or third film and are having some trouble can find some hope from what has happened to us on this movie," Dayton said. "We were dead ... in the studio system. They had given up on us, and thankfully people in the independent world stuck with us."

The lead-acting Spirit Awards went to the stars of another Oscar contender, the classroom drama "Half Nelson." Ryan Gosling played an inspiring teacher battling a severe drug habit and Shareeka Epps won for her role as a bright student who becomes both his protege and counselor.

Gosling has a best-actor Oscar nomination for "Half Nelson," which also debuted at Sundance last year.

A third Sundance premiere, "Friends With Money," took the supporting-actress Spirit Award for Frances McDormand as a fashion designer who finds that wealth does not necessarily buy happiness.