One of the producers behind the Harry Potter stage play is speaking for the first time about how they convinced J.K. Rowling to move forward with the idea.

Speaking to Deadline in a lengthy Q&A about his career, producer Colin Callender offered a couple of new details about the idea behind the yet-to-be-titled show for London’s West End on which J.K. Rowling serves as a producer and collaborator.

Callender says that his idea for the Harry Potter play appealed to Rowling because it was different from what others had pitched to her in the past. “When Sonia [Friedman, co-producer] and I approached her it seemed as though it was the first time someone had really talked to her about how one could be an intimate drama on the stage that would explore a side of Harry that hadn’t been seen before. And I think she responded to the possibilities of what could be done on stage and she has embraced it fully and is working with us. It’s very exciting.”

Related: Read J.K. Rowling’s announcement about the Potter stage play

As for what the story is about, Callender says that it will “explore the emotional life of Harry in a way that it’ll be different from what was in fact in the books or in the films.”

The producer said that Rowling is “centrally involved” and it’s too early to know if there is interest from Broadway because they have no writer or director attached yet.

When asked about a potential screen adaptation, Callender said, “I don’t know. That’s certainly not the intent at the moment. It is to create a play that uniquely takes advantage of the intimacy and the immediacy of what you can do with a play with a live audience. So it’s not going to be a big special effects play. It’s an intimate personal drama about the boy who lived under the stairs.”

We’ll continue to keep an eye on the play as more news comes to light. In the meantime, check out all we know about Harry’s years before he went to Hogwarts.