His family emigrated to Uruguay in 1939. 1956 scholarship at the Hochschule der Kuenste (HDK) in Berlin, Germany. Between 1959 and 1964 he worked at the German TV channel Suedwestfunk, first as an assistant, later as a director. 1967/68 he was lecturer at the Deutsche Film- und Fernsehakademie in Berlin. Co-founder of the German distributor Filmverlag der Autoren. Since 1985 headmaster of the section Film- und Medienkunst at the Akademie der Kuenste in Berlin.
Peter Lilienthal has 63 screen credits in a career dating back to 1960. Signature works include Camilo: The Long Road to Disobedience, Ein Fremder, Angesichts der Wälder. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.