WORKERS WHO LABOR behind the scenes on movies in New York City have rejected a proposed contract with big Hollywood producers, prolonging an impasse that has put a virtual stop to major filmmaking in the city. . . . QIN BENLI, a dissident Shanghai editor whose newspaper was China's boldest until the government closed it during the 1989 pro-democracy movement, has died of cancer just weeks after being officially censured. . . . CONNECTICUT GOV. Lowell P. Weicker Jr. signed legislation Monday that repeals the state's anti-adultery law, a holdover from Puritan times that led to four arrests last summer.