Teheran 43 is a 1981 Soviet-French-Swiss political thriller film made by Mosfilm, Mediterraneo Cine and Pro Dis Film, directed by Aleksandr Alov and Vladimir Naumov. It is based on events around Operation Long Jump, the 1943 attempt by Nazi Germany to assassinate Winston Churchill, Joseph Stalin and Franklin Delano Roosevelt during the Tehran Conference.

Mosfilm is a film studio which is among the largest and oldest in the Russian Federation and in Europe. Founded in 1924 in the USSR as a production unit of that nation's film monopoly, its output includes most of the more widely acclaimed Soviet-era films, ranging from works by Andrei Tarkovsky and Sergei Eisenstein, to Red Westerns, to the Akira Kurosawa co-production Dersu Uzala and War and Peace.