Black Satin.

While on vacation in the USA, Prince Dimitri of Zirconia meets and falls madly in love with a movie actress, Gina Kerosina. She, however, is viewed as a commoner and the Prince encounters much resistance from his family and aides. Especially the evil Count Zharkov, who sees an opportunity to seize power during this domestic upheaval. The count, with the aid of a mobster named Spanish Eddie, plot the Prince's demise. However, they didn't count on the many talents of the mysterious gunman Gat Wilson, who thwarts their evil plans but manages a few twists of his own.