Trailers Weekly: “Green Lantern”, “Colombiana”, “Conan the Barbarian”, “Page One”, and “Retreat” Michael Lee, May 7, 2011May 7, 2011 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 the first weekend of May which means…