The Invincible Six
The Invincible Six is a 1970 American-Iranian adventure film directed by Jean Negulesco and starring Stuart Whitman, Elke Sommer, Curd Jürgens, and Ian Ogilvy. Six international criminals attempt to steal the crown jewels of Iran, but in the tradition of 1954 film Seven Samurai and the 1960 film The Magnificent Seven, end up defending a village from bandits. This was the final film of Negulesco's long career.
An adventurous American whom everybody calls Tex, and his partners, the mechanically savvy Mike and an Englishman named Ronald, are foiled in their bid to steal Tehran's precious jewels. In the desert, they join up with three other criminals, an Iranian, an Italian, and a German, to plot another heist.