I absolutely adore Princess Mononoke as well! Such an enchanting film. Hayao Miyazaki is my hero, and I insist on meeting him some day!
I should have known better than to watch the trailer for The Red Turtle; it gave away the entire film, haha. u_u; Still, I'm interested in giving it a try sometime! Same with Mary and the Witch's Flower and Miyazaki's upcoming feature films. :)