Your First....Anime, of course!

Nausicaa and the valley of the wind. I had watched it when I was very young and as I was hitting my teens it was playing on the tv during a party. I only got to see bits and pieces and I was eager to figure out where I had seen it before, it was almost like a dejavu moment. That search eventually led me to a number of great animes, my favorites being the Hiayo Miyazaki movies, and Trigun.