Garriba also worked as assistant director for Bernardo Bertolucci, Pier Paolo Pasolini, Marco Ferreri and Carmelo Bene. His only work as director, the short film I parenti tutti, was screened at the 68th Venice International Film Festival alongside his brother's works in the retrospective "Orizzonti 1960-1978".[2] Garriba also published several collections of poetries.[2]