LONDON, Feb 7 (Reuters) - The 2013 Berlin film festival opens on Thursday with martial arts epic "The Grandmaster". Following is a list of the main competition films, in order of appearance during the 11-day festival (title, director, main production country). - The Grandmaster/Wong Kar Wai/Hong Kong (out of competition, opening film) - In the Name Of.../Malgoska Szumowska/Poland - Promised Land/Gus Van Sant/United States