Lyla Novacek (Keri Russell) is a brilliant cellist who has just finish performing a concert in New York City. Lyla goes out on the town with her girlfriend and end up at a party near New Yorks Washington Square. She meets Louis Connelly (Jonathan Rhys Meyers) an Irish guitar player. They share the love of music and end up falling in love and bonding together that night. It was the most wonderful night in Lylas life. Lyla must rush back to the hotel where her father Thomas (William Sadler) is waiting for her. Lyla promised to meet Louis in Washington Square, but her father forces her to go to her next concert. They are like two ships that pass in the night, never to see each other again, except for the fact that Lyla is now with child. Sadly, Lyla is in a car accident and the unborn child is lost. Eleven years pass and Lylas father is on his death bed, and he must tell her the truth that he secretly gave Lylas baby boy up for adoption. August Rush (Freddie Highmore) is her child, who was born with the gift to hear music all around him. He believes that he will find his parents if they only hear his music, because they are truly bonded by their music.
Freddie Highmore ... Evan Taylor - 'August Rush'
Keri Russell ... Lyla Novacek
Jonathan Rhys Meyers ... Louis Connelly
Terrence Howard ... Richard Jeffries
Robin Williams ... Maxwell 'Wizard' Wallace
William Sadler ... Thomas Novacek
Marian Seldes ... The Dean
Leon G. Thomas III ... Arthur (as Leon Thomas III)