Four-hour documentary Potosi: The Journey took the top prize at the seventh Era New Horizons Film Festival in Wroclaw, Poland.

Ron Havilio's documentary is about a couple who journey to a mining town in Bolivia in 1970 and return in 1999 with their children.

The 11-day festival wrapped July 29 with record setting ticket sales of 116,000. Era New Horizons hosted 647 screenings of 460 films from 47 countries.

The main winner of New Polish Cinema competition named by the international jury was Paradise Too Far Away directed by Radoslaw Markiewicz. The jury gave a special mention to Rafal Kapelinski's debut The Ballad of Piotrowski.

This year's special programmes including a focus on Australian cinema and retrospectives for Hal Hartley and Federico Fellini.

The 2008 edition of Era New Horizons is planned for July 17-27.