

That was over 21 years ago in 2001.
Today he is 33, and has starred in 21 movies in total, 19 since Harry Potter and the Philosopher's Stone was released.
In Harry Potter and the Philosopher's Stone, I think Rupert Grint looks:
Harry Potter and the Philosopher's Stone scores 7.6 out of 10 on The Movie Database.
Rupert Grint's first acting role was as 'Ron Weasley' in Harry Potter and the Philosopher's Stone, released in 2001 when he was 13.