Danny, the Champion of the World (television) A widowed gas station attendant and his son, who live in a gypsy caravan behind the station, team up against a rich land baron to save their town. A Disney Channel Premiere Film; first aired on April 29, 1989. Directed by Gavin Millar. Based on the novel by Roald Dahl. Stars Jeremy Irons (William Smith), Sam Irons (Danny Smith), Cyril Cusack (Doc Spencer). 99 min. Not only is Jeremy Irons Sam’s father, but Cyril Cusack is his grandfather (on his mother’s side).