The gorgeous Technicolor adaptation of Rudyard Kipling’s Jungle Book, starring Sabu, is another one of those staples in public domain collections. The 1942 movie was the first film adaptation of Mowgli’s stories, although many others would follow decades later.
In a village in India, a tiger kills a man but his son is rescued and raised by wolves. Years later, the boy returns to the village where he learns to speak. Eventually he returns to the jungle to face the tiger. It’s a classic story for all ages, which is why it’s ranked so high in the Internet Archive Top 100.