The last of the snow around Potsdamer Platz has melted in time for the 63rd edition of the Berlin International Film Festival. This year’s opening film, from festival jury president Wong Kar-Wai (pictured at left), was the big-budget Kung Fu epic "The Grandmaster," shown here in its world premiere a month after opening in China. Expectations ran high for the arthouse auteur’s first martial arts outing, not to mention