Trivia / A Mighty Wind

  • Casting Gag: The Folksmen are played by Christopher Guest, Michael McKean, and Harry Shearer, AKA Nigel Tufnel, David St. Hubbins, and Derek Smalls.
  • Permanent Placeholder: "Potato's In The Paddywagon" was originally a placeholder title for the song - it didn't have lyrics yet, but that nonsensical phrase happened to fit the chorus melody. It was decided this was a ridiculous enough title to actually use for a folk song parody, so Michael McKean and Annette O'Toole worked backwards from the title to write the rest of the lyrics.
http://tvtropes.org/pmwiki/pmwiki.php/Trivia/AMightyWind