If you want to know as much as I do about monkeys, I can recommend these films:
Dr.Decker comes back from Africa after a year, presumed dead. During that year, he came across a way of growing plants and animals to an enormous size. He brings back a baby chimpanzee to test out his theory. As he has many enemies at home, he decides to use his chimp, 'Konga' to 'get rid of them'. Then Konga grows to gigantic proportions and reaks havoc all over the city of London!!
When a female zoology student is invited to a remote seaside mansion to assist a primatology professor with his experiments involving chimpanzees, dangerous events start to occur, all involving the intelligent 45-year-old chimp, Link.
Returning from a hunting trip in the forest, the Henderson family's car hits an animal in the road. At first they fear it was a man, but when they examine the "body" they find it's a "bigfoot". They think it's dead so they decide to take it home (there could be some money in this). As you guessed, it isn't dead. Far from being the ferocious monster they fear "Harry" to be, he's a friendly giant.
Eight people embark on an expedition into the Congo, a mysterious expanse of unexplored Africa where human greed and the laws of nature have gone berserk. When the thrill-seekers -- some with ulterior motives -- stumble across a race of killer apes.
A depiction of the true life story of Gertrude Lintz, an eccentric 1920's socialite who tries to raise a gorilla, like many chimps before him, as part of her family.