Seeking the title of an inspirational movie

The movie went like this:
A young couple took their son (a young child) out to play in the wild. The child ran out of the car to play. The young couple was making out in the car, but the car broke down and ran to the bottom of a big slope. The couple died. Just as the child was crying helplessly, a middle-aged man passed by.
Thus, the child's adventure with the middle-aged man began. This person taught the child to catch termites to replenish protein, avoid dogs, catch fish, and other survival skills. In the end, they arrived at the destination of the elderly. In fact, this person was sick and had come to this destination to be buried. Later, the child buried the old man. The old man told him that as long as he walked along the river, he would return home.

Answer 1

An inspirational movie could be called Invictus.