I was amazed by the similarities. Jesus took on the sins of the world, according to the Bible. And, so does Leeloo. Jesus cried for the lack of faith. Leeloo cries, too, as she learns just how lost humanity is and how destructive people are to each other.
People are do very evil things.
There seems to be no good reason to save the world. Except one -love. This is Grace. At the end of the film Leeloo is placed in the middle of four colored light rays emanating from the four elements forming a cross. She then becomes the light of the world that penetrates into the universe and explodes the pending destruction.