Le bon, la brute et le truand

According to Eli Wallach, when it came time to blow up the bridge, Sergio Leone asked the Spanish Army Captain in charge to trigger the fuse, as a sign of gratitude for the Army's collaboration. They agreed to blow up the bridge when Leone gave the signal "Vai!" (Go!) over the walkie-talkie. Unfortunately, another crew member spoke on the same channel, saying the words "vai, vai!", meaning "it's okay, proceed" to a second crew member. The Captain heard this signal, thought it was for him, and blew up the bridge. Unfortunately, no cameras were running at the time. Leone was so upset that he fired the crewman, who promptly fled from the set in his car. The Captain was so sorry for what happened that he proposed to Leone that the Army would rebuild the bridge to blow it up again, with one condition: that the fired crewman be re-hired. Leone agreed, the crewman was forgiven, the bridge was rebuilt, and the scene was successfully shot.

A car can be seen passing by in the background when Tuco is balancing on the cross on the graveyard at the end of the movie.

Although Eli Wallach has the most screen time and is one of the titular characters, he is credited as "...and Eli Wallach in the role of Tuco" after all the other actors' names appear.

Syndicated on US TV in 2006 as a 95-minute truncated version, missing almost half of its original length.

Edited into Bellissimo: Immagini del cinema italiano (1985)