Trailers Weekly: G.I. Joe Retaliation, Rock of Ages, The Dictator, The Expendables 2, Ghost Rider: Spirit of Vengeance, Casa Mi De Padre Michael Lee, December 17, 2011December 17, 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. This week we saw trailers for G.I. Joe Retaliation,…