In Japan, candidates who run for office generally don't rise naturally from the grass roots. Many are molded into politicians by extremely organized election campaigns.

This process is on display in a documentary by 36-year-old film director Kazuhiro Soda. "Campaign" tracks the run of a candidate for a municipal assembly election.

The film, which will be released June 9 in 17 cities in Japan, captivated audiences at the Berlin International Film Festival in February and later in many other countries.