Born in Croatia, he began his career as an assistant director, working on notable films such as "Schindler's List" and "Saving Private Ryan." He transitioned to directing, making a name for himself in television with episodes of acclaimed series like "Battlestar Galactica," "Heroes," and "The Walking Dead." Known for his dynamic storytelling and ability to handle complex narratives, he has become a respected figure in both film and television, blending action with character-driven plots.