The Four River Film Festival is an international film festival dedicated to high school films and cinema made by youth aged 14 to 20. It is held annually in Karlovac, Croatia, a city known for its four rivers. Organized by Cinema Club Karlovac in collaboration with the Croatian Film Association, the festival features an official competition, side programs, workshops, roundtables, and development platforms for young filmmakers. Screenings often take place at open-air locations along the river shores, offering a unique viewing experience. The festival has garnered significant international attention, attracting numerous applications from around the world and hosting hundreds of international guests.