Mancina penned the orchestral score to the film that tells the story of an orphaned musical prodigy who ventures to New York in the hopes that his musical talents will help him find his birth parents.
The composer was also Tony Award-nominated for his work as a co-writer, producer and arranger for the score of the Tony Award-winning Disney musical The Lion King.
Emmy Award winner Berger, who is penning the book for the musical, is the playwright of Underneath the Lintel and collaborated with Tony Award winner Taymor on the original book to the Broadway musical Spider-Man.
The musical adaptation of "August Rush" is being developed with Warner Brothers along with CJ Entertainment and producer Richard B. Lewis.
Holed up in a seedy motel on the edge of the Mojave Desert, two former lovers unpack the deep secrets and dark desires of their tangled relationship, passionately tearing each other apart. Led by director Daniel Aukin (Back Back Back at MTC, 4,000 Miles), Tony winner Nina Arianda (Venus in Fur at MTC, Born Yesterday) and Sam Rockwell (A Behanding in Spokane, The Way Way Back) bring an explosive intensity to Sam Shepard’s (Buried Child, True West) landmark myth of the new Wild West.