Simplify the following text for a Grade 8 native English-speaking person.
Original: Radcliffe made his film debut in 2001 with a supporting role alongside Pierce Brosnan in The Tailor of Panama , and the first Harry Potter film , Harry Potter and the Philosopher 's Stone was released later that year .
Simplified: In 2001 , he played Mark Pendel in the movie Tailor of Panama . Later that year , he was chosen to play Harry Potter in the movie Harry Potter and the Philosopher 's Stone ( called Harry Potter and the Sorcererâ s Stone in the United States ) .