When work began on the film, Artificial Intelligence: AI in 1993, Joseph was cast originally by director, Steven Spielbirg.
He met Steven Spielberg on the set of Radio Flyer.
Often went to see movies as a child with his grandmother.
He was originally going to play the role of Jack in the film, Hook but was considered too small.
The film, Radio Flyer began filming on his birthday.
His idol is James Stewart.
Made his directional debut for the film, Matters of Life and Death.
Graduated in 2005 from the University of Southern California, with a degree in cinema-television.
He is the brother of John Mazzello. Joseph and his brother have made appearances together in Radio Flyer and Simon Birch.
In the film Jurassic Park, director Steven Spielberg swapped the ages of the children to let Joe star as Tim.
Has a sister who teased him about his "old-fashioned" taste in music.
His favorite movie is It's a Wonderful Life.
His parents operate a dance studio.
Joseph Mazzello: Make acting seem real and as if it weren't acting. Just make it real.