Trailers Weekly: Jonah Hex, Life As We Know It, The Last Exorcism, Morning Glory, and Shanghai Dan Koelsch, May 30, 2010June 6, 2010 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. This week we have a second trailer for Jonah…