Challenge of the McKennas

One Dollar and a Tomb (La sfida dei MacKenna; Un dólar y una tumba) is a 1970 Argentinian western film directed by León Klimovsky, produced by José Frade, written by Pedro Gil Paradela, scored by Francesco De Masi, and starring Robert Woods, John Ireland, Roberto Camardiel and Annabella Incontrera.

Cast
• Robert Woods as Chris

• John Ireland as Jones

• Annabella Incontrera as Maggie

• Roberto Camardiel as Don Diego

• Mariano Vidal Molina as Ed Gray

• Daniela Giordano as Barbara

• Ken Wood

• Attilio Dottesio as Sheriff Bill

• Sergio Mendizábal as Doctor

• Sergio Colasanti

• Angelo Dessy

• José Antonio López

• Ferdinando Poggi

• Angelo Botti