Anthony Hopkins and Jonathan Pryce on "The Two Popes"

In 2013 the unthinkable happened: a pope resigned, and another became head of the Vatican. For the first time in six centuries, the Catholic Church had two popes. The new film "The Two Popes" imagines what conversations between the 85-year-old Pope Benedict XVI (played by Sir Anthony Hopkins) and Pope Francis (played by Jonathan Pryce) would have sounded like — and since both pontiffs disagreed on most everything, not all of that conversation is polite. Correspondent Tracy Smith talked with Hopkins and Pryce about their star-making movies, faith, and friendship.