Can be seen here, in english with Portuguese subtitles, a documentary made by an amateur group of people who search for the human being existential questions, that we, more or less often, put already to ourselves. For example:
Why we are here?
What is the meaning of life?
Several interviews were carried out by them, on the street and to some known people (for example: Deepak Chopra and Thich Nhat Hahn).
This documentary has some extras.
It is divided into 14 parts.