The Croods 2013 Seeking the light's source, she meets Guy (Ryan Reynolds), an intelligent Cro-Magnon caveboy (Homo sapiens sapiens). She at first attacks him but then becomes fascinated with the fire he creates and is eager to learn more. He tells her about his theory that the world is reaching its 'end' and asks her to join him. She refuses and Guy leaves, but not before giving her a noise-making shell to call him if she needs help.