Patrick Frater Asia Bureau Chief Taiwanese-produced crime action film “The Pig, the Snake and the Pigeon” opened on top of the mainland China box office over the weekend, ahead of a quartet of holdover titles from Lunar New Year. Sony’s ‘Madame Web’ and a rereleased “Dune” also opened, but they failed to penetrate the top five. “The Pig, the Snake and the Pigeon” earned $16.2 million (RMB115 million), according to data from consultancy firm Artisan Gateway.