The mere mechanical technique of acting can be taught, but the spirit that is to give life to lifeless forms must be born in a man. No dramatic college can teach its pupils to think or to feel. It is Nature who makes our artists for us, though it may be Art who taught them their right mode of expression.
If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence.
I think a cute movie idea would be about a parrot who is raised by eagles. It would be cute because the parrot can't seem to act like an eagle. After a while, though, to keep the movie from getting boring, maybe put in some pornography. Later, we see the happy parrot flying along, acting like an eagle. He see two parrots below and starts to attack, but it's his parents. Then, some more pornography.