When Does Life Begin?

When does life begin in the womb? It's an all important to question that determines when a baby is given the rights described in the Declaration of Independence:

We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.

This following clip from the movie, Come What May, makes the abortion argument look silly because they play around with the concept of life and when a fetus actually becomes a human being. It all comes down to the question, "When does life begin?" The answer is so simple that a child can understand it but adults just can't seem to grasp it. Life begins at conception and it's an event that only happens one time in each person's life.