Sorry, you wanted for 12-15. Perhaps my suggestions will still do anyway, they're much enjoyed by adults too, but i'll second Gaz' ideas. How about some Miyazaki animations (Spirited Away, My Neighbour Totoro, Princess Mononoke are probably the most famous), loved by all ages. Battle Royale possibly for 15 year olds- quite violent, not sure of the age certificate. It's about a bunch of Japanese school kids who are taken to an island and forced to hide out and kill each other till only one is left. Crouching Tiger is a grand, entertaining, very popular and successful, Oscar-winning Chinese fantasy adventure, with gravity-defying martial arts. The French film Amelie has also been extremely popular.