Renato Casaro is an Italian artist known for his movie posters, which include films like My Name Is Nobody, Quadrophenia, Conan the Barbarian, Tenebrae, Octopussy, Never Say Never Again, Rambo: First Blood Part II, Red Sonja and Flesh and Blood. He is considered one of the most important, influential and innovative Italian film poster artists. He has made hundreds of works dedicated to the cinema, becoming very popular abroad. He has also painted calendars, collectibles, book covers and album covers.

Tenebrae is a 1982 Italian giallo film written and directed by Dario Argento. The film stars Anthony Franciosa as American author Peter Neal, who – while in Rome promoting his latest murder-mystery novel – becomes embroiled in the search for a serial killer who may have been inspired to kill by his novel. John Saxon and Daria Nicolodi co-star as Neal's agent and assistant respectively, while Giuliano Gemma and Carola Stagnaro appear as detectives investigating the murders. John Steiner, Veronica Lario, and Mirella D'Angelo also feature in minor roles. The film has been described as exploring themes of dualism and sexual aberration, and has strong metafictional elements; some commentators consider Tenebrae to be a direct reaction by Argento to criticism of his previous work, most especially his depictions of murders of women.