Coming of age as a Yonsei University sociology major during South Korea's turbulent struggle for democracy surely contributed to director Bong Joon-ho's unique ability to transform domestic issues and contradictions into allegory. As a young cinephile, Mr. Bong was exposed to the auteurs of the region through the university cine club. He directed three short films before his feature-length debut and box-office flop, "Barking Dogs Never Bite" in 2000. But "Memories of Murder" (2003) was critically and commercially successful at home and abroad, putting his name alongside other local filmmaking wunderkinds, most notably Park Chan-wook. His next release, "The Host" (2005), an allegory of the U.S. occupation and the changing Korean family in the guise of a retro monster film, remains the top-grossing South Korean film of all time. Subsequent short film "Shaking Tokyo" in "Tokyo!" was easily the best installment in the overall uneven omnibus production featuring co-contributors Leos Carax and Michel Gondry. Finally, with recent masterwork "Mother," Mr. Bong proves that — unlike Mr. Park's latest over-stylized disappointments — his films only become richer and more intricate in their form and content. Here, Mr. Bong addresses the casting choices, cinematic influences and characters in "Mother."

