A 10-year-old child prodigy cartographer secretly leaves his family's ranch in Montana where he lives with his cowboy father and scientist mother and travels across the country on board a freight train to receive an award at the Smithsonian Institute.
Kyle Catlett
as T.S. Spivet
Helena Bonham Carter
as Dr. Clair
Judy Davis
as G.H. Jibsen
Callum Keith Rennie
as Father
Niamh Wilson
as Gracie
Jakob Davies
as Layton
Rick Mercer
as Roy
Robert Maillet
as Giant Hobo
Dominique Pinon
as Two Clouds
Julian Richings
as Ricky
Richard Jutras
as Lecturer
Mairtin O'Carrigan
as Lecturer
