John Williams as Self - Composer

Steven Spielberg as Self - Filmmaker

J.J. Abrams as Self - Filmmaker

Emanuel Ax as Self - Pianist

Kate Capshaw as Self - Actor / Wife of Steven Spielberg

Chris Columbus as Self - Filmmaker

Gustavo Dudamel as Self - Composer / Conductor, LA Phil

Ethan Gruska as Self - Record Producer / Grandson of John Williams

Paul Hirsch as Self - Editor

Javier C. Hernández as Self - Culture Reporter, The New York Times

Ron Howard as Self - Filmmaker

Thomas Hooten as Self - Principal Trumpet, LA Phil

Karen Johnson as Self - Concert Master, US Marine Chamber Orchestra

Lawrence Kasdan as Self - Filmmaker

Kathleen Kennedy as Self - Filmmaker

George Lucas as Self - Filmmaker

Yo-Yo Ma as Self - Cellist

Seth MacFarlane as Self - Filmmaker / Vocalist

James Mangold as Self - Filmmaker

Branford Marsalis as Self - Saxophonist / Composer

Frank Marshall as Self - Filmmaker

Chris Martin as Self - Musician, Coldplay

Elvis Mitchell as Self - Host of The Treatment, KCRW

Anne-Sophie Mutter as Self - Violinist

David Newman as Self - Film Composer / Conductor

Thomas Newman as Self - Composer

Itzhak Perlman as Self - Violinist

Ke Huy Quan as Self - Actor

Alex Ross as Self - Music Critic / Historian

Alan Silvestri as Self - Composer

Helen Wargelin as Self - Second Horn, Virginia Symphony Orchestra

Jenny Williams as Self - Daughter of John Williams

Irwin Allen as Self - Producer, The Poseidon Adventure, The Towering Inferno (archive footage)

Kenneth Wannberg as Self - Music Editor (archive footage)

Christopher Reeve as Self - Actor (archive footage)

Simone Porter as Self (archive footage)

Barbara Ruick as Reno Barmaid (archive footage) (uncredited)