Trailers Weekly: “Girls Against Boys”, “Google & The World Brain”, “Trance”, “42”, “21 & Over” Michael Lee, January 12, 2013 Trailers Weekly is a feature in which we bring you the most popular and talked about trailers of the week. Sharing trailers is a classic viral practice, and trailers are still the most mainstream way for people to learn about movies. It’s a brand new year and that means we…