A band of young musicians will do the impossible to boycott a song they didn't like at all, and that's supposed to represent Spain in a famous musical contest. An unusual film by the odd Zulueta in which, after the success of Spanish singer Massiel in Eurovision contest, this kind of contests are parodied with an insane story shot without a script and with the performance of several top music bands of that time.

Directed by: José Luis Borau & Iván Zulueta
Written by: Jaime Chávarri & Iván Zulueta
Release date: 1970-03-23
Runtime: 90 minutes
Tagline: Los locos del ritmo loco
Cast:
Jaime Chávarri Jaime Chávarri
Spot Producer (uncredited) 
Patty Shepard Patty Shepard
Patty 
José Luis Borau José Luis Borau
Tio Prudencio 
Ramón Pons Ramón Pons
Gasset 
María Isbert María Isbert
Isberta 
Tina Sainz Tina Sainz
Tina