Looking for a movie

I have seen this TV in my memory, but I forget its name.

I only know that it originated from a legend near the Three Gorges: "A group of children from poor families were playing on the river dam, and a child found a bead in the haystack, which was sparkling and particularly magical. Other children came to grab the beads, so the child hid the beads in his mouth, but accidentally swallowed them. After swallowing it, he felt thirsty and ran home to drink water. As a result, he drank the water in the bowl and the water in the jar. After drinking all the water in the house, he still felt very thirsty, so he simply jumped into the river to drink water. The child turned into a dragon and swam away. The child's mother was very sad and shouted behind her:' Son, come back! "Come back, son!" When his mother shouted, Longhuitou Scenic Spot looked. Mother shouted 24 times, Longhuitou Scenic Spot watched 24 times, and finally formed 24 Liang Shi, named Wangniang Beach. "