The film tells the story of two boys who become friends at the start of the Troubles in 1970. The boys share an obsession with Butch Cassidy and the Sundance Kid, with the consequence that they run away to Australia.

John Joe McNeill
as Mickybo

Niall Wright
as Jonjo

Adrian Dunbar
as Mickybo's Da

Ciarán Hinds
as Jonjo's Da

Gina McKee
as Jonjo's Ma

Julie Walters
as Mickybo's Ma

Susan Lynch
as Torch Woman

Owen O'Neill
as Adult Mickybo

Laine Megaw
as Auntie Rita

Michael McElhatton
as Mechanic