The Assassination of Trotsky

The Assassination of Trotsky is a 1972 British film directed by Joseph Losey with a screenplay by Nicholas Mosley. It starred Richard Burton as Leon Trotsky, as well as Romy Schneider and Alain Delon. A few years after release, The Assassination of Trotsky was included as one of the choices in the book The Fifty Worst Films of All Time.

In 1965 Josef Shaftel optioned the novel The Great Prince Died by Bernard Wolfe. The film was a coproduction between the French Valoria Company and Dino De Laurentiis. It was to be shot in England but was eventually filmed in Mexico. The movie used the Isaac Don Levines book, The Mind of an Assassin as a source.

Source: Wikipedia