Igor Bezinović's 'Fiume o morte!' took home the top prize, the Tiger Award, at the Rotterdam Film Festival.
This fascinating film cleverly uses real-life events and dramatic scenes to explore a historical event linked to nationalism.
The judges highlighted the film's powerful message about how the past affects the present and future societies.
Other films like 'The Tree of Authenticity' and 'Im Haus meiner Eltern' were also recognised for their brilliant storytelling.