"The Big Gundown," directed by Sergio Sollima and released in 1966, was primarily filmed in Spain, particularly in the region of Almería. This area is known for its distinctive desert landscapes, which served as a backdrop for many Spaghetti Westerns during that era. The film features the iconic cinematography typical of the genre, capturing the rugged terrain that enhances the story's Western themes.

"The Big Gundown," originally released in 1966, has several versions due to its international releases and edits. The most notable versions include the original Italian cut, which runs about 105 minutes, and the American release, often shortened to around 88 minutes, which altered some scenes for content and pacing. Additionally, there's a 2010 restored version that attempts to bring the film closer to its original vision, featuring improved visuals and sound. Each version varies in terms of scenes, dialogue, and overall pacing, impacting the viewing experience.

"The Big Gundown" is a 1966 Spaghetti Western directed by Sergio Sollima, featuring Lee Van Cleef as a ruthless bounty hunter, Jonathan Corbett. The film follows Corbett as he pursues a man accused of raping and murdering a young girl. The story explores themes of justice and morality, with Corbett questioning the true nature of guilt and innocence. The film is known for its stylish direction, strong performances, and a memorable score by Ennio Morricone, which enhances its tension and atmosphere.

"The Big Gundown" (original title: "La Resa dei Conti") is not directly based on a book. Instead, it is an Italian Spaghetti Western film directed by Sergio Sollima, released in 1966. The screenplay was co-written by Sollima and his frequent collaborator, and the film draws on themes and elements common in Westerns, particularly the moral complexities of justice and vengeance. While it may have been influenced by various literary and cinematic sources, it is an original work rather than an adaptation of a specific book.