"It's not long. It's about two ... a couple of minutes," Barron said. "It's long enough to tell its story. We like it. We think it works well, and it does leave you feeling a bit [emotional]."

"We're expressing it through our three principle characters, who obviously have had a terrible time in many respects. Because they have been fighting Voldemort for longer than we can remember, and came close to death, you'll see the state of the school at the end. It was not an easy battle," he said. "As countries, as nations do, as cultures do, they recover and they renew and life carries on. It is about renewal."

"[The epilogue is] about the cycles of life," Heyman explained. "It's about Harry, Ron and Hermione taking their children to King's Cross station to the very place where the story began, to begin the journey that they began many years ago. It's really beautiful and really tender."