Actually I thought it was rather fun. There's nothing like period piece to make you wince and laugh at the same time, and A Mighty Wind was a great follow on to all that. It made me curious enough to Google for the Legendaires and found this on the Sandiego Troubadour site about another US group I'd never heard of called We Five:

From the third album (The Return of the We Five) on, the female vocalist would be Debbie Burgan, Jerry's wife. (Jerry, Debbie, and Pete Fullerton retained the We Five name after a business acquisition with the other band members.)

Debbie was no stranger to the California folk scene. She recorded her first disc at 14 and was later a member of the Legendaires, a trio that later secured a recording contract with Mercury Records and worked with Mike Curb, a music industry veteran whose diverse curriculum vitae includes soundtrack music for American International Pictures youth exploitation films and a term as California Lieutenant Governor.

A short promotion film featuring the Legendaires is now considered a collector's item for devotees of the Scopitone, a '60s novelty that placed a video screen over the body of a jukebox. Scopitone music shorts are now all over the Internet, a pop culture renaissance that must provide Debbie Burgan with occasional moments of nostalgic reflection.

"In October of 1965 the Legendaires were asked to film a short film for a juke box, coin operated sound film on the Scopitone," said Debbie. "The Legendaires consisted of Michael Alley, Jeff Tonkin, and myself, then Debbie Graf. We had won the Battle of the Bands at the Hollywood Bowl and just returned from singing for President Johnson at the World's Fair in New York. Most of the product for Scopitone was produced in Hollywood by a company owned by Debbie Reynolds and film-maker Irving Briskin. Our film was shot at Griffith Park on the trains. It was very exciting to be involved in the project. We sang a song named 'Good for Nothing Bill.' There were dancers, and a hobo depicting the character Bill. We were standing on the top of the train at times, then the platform of the caboose.

"The dancers were doing a routine with the hobo, and we thought it was over the top, but we were just the singers," said Debbie. "It was the first time I had been taken out and had clothing bought for a project by the director. We all had make-up and hair done, as well. I don't remember making any money, but I did get to keep the clothes.

"At the time, there were 427 machines operating in California lounges, and over a thousand in the United States. I had some calls from relatives who saw us from several states away, and that was exciting. Each machine held 36 short films in color, and we were one of 26 films made at that time along with Debbie Reynolds, Kay Starr, Vic Damone, Bobby Vee, James Darren, Mary Kaye, Frankie Avalon, Vikki Carr, the Righteous Brothers, and others. Each film ran for about three minutes and was produced by Briskin. It cost a quarter to play them. Sadly, the Scopitone was short lived."

Not much implied about "folk" in there, but interesting.