Pope Francis is shaking up the Catholic Church and putting the Vatican back on the world stage.

The Argentine-born pontiff's stances on issues like the LGBT community, women, and the environment are changing the public perception of the Church. Some see him as a Marxist pope, someone who has defiantly aligned himself with the poor. Others view him as a rock star pontiff who defies norms and appeals to a new generation of Catholics.

But just how deep is he transforming the Church? Are his gestures more symbolic than real?

As Pope Francis embarks on a visit to the United States, we look at his rise to the papacy in Fusion's documentary Saint or Sinner: Pope Francis. Watch all six parts of the special below. 

Part 1

“All the cardinals turned to each other and said, 'That’s the man.'”

Part 2

"I am a sinner. I really am a sinner.'”

Part 3

“If a gay person is a person who seeks God and has goodwill, who am I to judge?”

Part 4

“Pope Francis is not the progressive, liberal icon people would like him to be.”

Part 5

“If Pope Francis can’t reach millennials, I don't think anyone can. He’s, in a sense, a pop phenomenon.”

Part 6

“What matters is not Bergoglio and his past, but Pope Francis and his future.”

Read more of Fusion's coverage of Pope Francis:

Pope Francis celebrates mass, meets Fidel Castro in Cuba

The Pope needs to see this Vatican replica made entirely out of LEGOs

From nightclub bouncer to his Holiness—and everything in between

@fusion