The Lad and the Lion (1917)

While on vacation from college, William Bankinton is shipwrecked. His mind a blank, he is picked up by a derelict ship upon which there are only a lion and a stowaway named Broot. After Broot commits suicide, Bankinton and the lion are cast adrift upon the shores of Africa where they exist in a primitive state for several months.

Unfortunately the movie The Lad and the Lion is not yet available on HBO Max.