I Killed Rasputin (French: J'ai tué Raspoutine) is a 1967 Italo-Franco biographical film directed by Robert Hossein. Gert Fröbe stars as the main subject, Grigori Rasputin. It is based on the work Lost Splendor by Felix Yusupov, a nobleman and participant in the murder of Rasputin. The script was approved by Yusupov and he also agreed to appear in the film. In the introductory interview of the film, Yusupov demonstrated that his loathing for Rasputin remained undiminished. Filming began at the Billancourt Studios in Paris in December 1966. The film opened the 1967 Cannes Film Festival and later that year was released theatrically in France on 3 May.