Simplify the following text for a Grade 9 native English-speaking person.
Original: Radcliffe was asked to audition for the role of Harry in 2000 by producer David Heyman , while in attendance at a play titled Stones in His Pockets in London .
Simplified: Radcliffe was asked to audition for the role of Harry Potter in 2000 by producer David Heyman , while in at a play titled Stones in His Pockets in London .