strangewood:

“Kubrick had also intended Sellers to play Major Kong, the commander of the only bomber to get through to its Russian target. Sellers hesitated to take the role of Kong, because he was uncertain that he could master Kong’s Texas twang, but Kubrick remained adamant that he play it. Finally, Sellers accidentally injured his ankle, when he tripped while emerging from his limo, and begged off from doing Kong’s scenes. Kubrick complied, but wondered if Sellers had suffered the fall “accidentally-on-purpose,” to get out of playing a part he was not comfortable with. Kubrick was disappointed that Sellers declined to play the fourth part, since, in his view, that would have meant that almost everywhere the viewer looks, there is some version of Peter Sellers holding the fate of the world in his hands.” [x]