OK Here is a tough one. It is a movie from my childhood (mid 80's, beta tape). The concept is prety basic: a water prince and a fire princess fall in love but they are forbidden by their families to be together since they are at war or something. They decide to float up to the moon or some place on these puff ball type pods that grow out of the ground once every like thousand years, but the water prince is captured so he misses the opportunity. It's real sad and I don't remember how it ends, but I think that the king's name was Triton and the water prince was simply called the Water Child. I will be impressed if someone gets this. Thank you and good luck.