Blow-Up is a 1966 psychological mystery film directed by Michelangelo Antonioni, co-written by Antonioni and Tonino Guerra and produced by Carlo Ponti. It is Antonioni's first entirely English-language film and stars David Hemmings, Vanessa Redgrave and Sarah Miles. Also featured was 1960s model Veruschka. The plot was inspired by Argentine writer Julio Cortázar's 1959 short story "Las babas del diablo".

Michelangelo Antonioni was an Italian director and filmmaker. He is best known for his "trilogy on modernity and its discontents"—L'Avventura (1960), La Notte (1961), and L'Eclisse (1962)—as well as the English-language film Blowup (1966). His films have been described as "enigmatic and intricate mood pieces" that feature elusive plots, striking visual composition, and a preoccupation with modern landscapes. His work substantially influenced subsequent art cinema. Antonioni received numerous awards and nominations throughout his career, being the only director to have won the Palme d'Or, the Golden Lion, the Golden Bear and the Golden Leopard.