Education
Trninić graduated from the University of Zagreb Academy of Drama Arts in 1979, and his first feature film was the 1991 Yugoslav film Virgina (Serbo-Croatian: "Virdžina"), directed by Serbian director Srđan Karanović.
Trninić graduated from the University of Zagreb Academy of Drama Arts in 1979, and his first feature film was the 1991 Yugoslav film Virgina (Serbo-Croatian: "Virdžina"), directed by Serbian director Srđan Karanović.