El Instituto Cubano del Arte e Industria Cinematogrʹaficos ; producción, Santiago Llapur, Camilo Vives ; argumento y dirección, T.G. Alea ; guiʹon, Tomʹas Gonzʹalez, Marʹia Eugenia Haya, T.G. Alea
produced in association with Special Broadcasting Service, Network 0-28, Australia, and Swedish Television Channel 2 ; Third Eye Productions Ltd. for Channel Four in association with RM Arts ; producer, Penny Corke ; directors, Geoffrey Haydon, Dennis Marks