FILM: Head over to the Castro to catch Jacob Cheung's A Battle of Wits (Muk gong), which is, according to IMDB, an action-drama-historical epic focusing on a "battle during China's Warring States period...which spanned from the 5th to the 3th centuries B.C. Based on a popular Japanese manga, which was in turn based a Japanese novel inspired by Warring States history in China." Part of the 26th San Francisco International Asian American Film Festival.......