Vincenzoni

According to Vincenzoni and Eli Wallach, the film would have been set 20 years after the original, and would have followed Tuco pursuing Blondie's grandson for the gold.

At the same time, Grimaldi was trying to broker his own deal, but Vincenzoni's idea was more lucrative.

However, screenwriter Luciano Vincenzoni stated on numerous occasions that he had written a treatment for a sequel, tentatively titled Il buono, il brutto, il cattivo n. 2 (The Good, the Bad and the Ugly 2).

It was changed just before shooting began when Vincenzoni thought up Il buono, il brutto, il cattivo (The Good, the Ugly, the Bad), which Leone loved.

Munn, p. 59 While Leone developed Vincenzoni's idea into a script, the screenwriter recommended the comedy-writing team of Agenore Incrucci and Furio Scarpelli to work on it with Leone and Sergio Donati.

Vincenzoni claims that he wrote the screenplay in 11 days, but he soon left the project after his relationship with Leone soured.