Face to Face

Gian Maria Volontè and Tomas Milian frequently clashed on-set due to their political beliefs - Volontè was an outspoken communist, while Milian had left his home country (Cuba) as Fidel Castro came into power. To build on their onscreen chemistry, Sergio Sollima also intentionally provoked the two actors into engaging in boxing matches with each other.

Colt Single Action Army revolvers (Peacemakers) and post-1866 Winchester rifles are used. Both did not exist until after the Civil War, which is when the film takes place.

Carlo Simi is given a "sets and costumes" credit on Italian prints, while English prints credit him as the "art director".

When 'Face to Face' was brought before the BBFC by Butcher's Film Service, it was cut from 112 minutes to 93 minutes to receive an 'A' rating. The 93-minute version of the English dub (featuring the voices of Tomas Milian and William Berger reprising their on-screen roles) was for some time the most widely available, having been released on Explosive Media's (out of print) 2-disc DVD release and Kino Lorber's Blu-ray, while the uncut English version was later released by Explosive Media on a single-disc DVD and in the first print run (of 1000 copies) of their Blu-ray release, which also contains the shorter English version. The scenes removed from the 93-minute English version were:

• The scene where Fletcher and Bennet spending a stormy night in one of Bennet's hideouts. Fletcher removes some floorboards to find medicine for Bennet's gunshot wounds, and Bennet, with Fletcher's help, removes a bullet from his body with a knife (the English audio for the second half of this scene was included in Explosive Media's original 2-disc release).
• Fletcher learns to shoot at a tree with Bennet's revolver. However, he hesitates when ordered to shoot a rabbit. Both men then spy on Charley Siringo - Beau wants to kill him, but Fletcher suggests creating a diversion.
• Bennet telling Reagen, a member of Sam Taylor's gang, that he shot him for "business" reasons, and walking away from his body when he dies (the English audio for this scene was included in Explosive Media's original 2-disc release).
• Belle de Winton's discussion about her deceased Confederate lover with Fletcher, and Bennet/Fletcher's reactions - Bennet implies that he and Belle are having (or have had) an affair, which Fletcher politely respects.
• Siringo's arrival at the de Winton estate, where he (aided by Vance and Aaron) kills a sheriff sent to capture Bennet. (The edited English version picks up from when, after Siringo kills the sheriff, Bennet discusses his level of trust for him.)
• Fletcher meeting Rusty Rogers at Puerto del Fuego, and expressing admiration for him. Maximilian then tells Fletcher that Puerto del Fuego is full of "ghosts of the past", but Fletcher feels that he has never seen anyone look more "happy, alive and free" (the English audio for the second half of this scene appears in Explosive Media's 2-disc release).
• Fletcher and Beau's mock duel, and Fletcher's explanations of the roles the other outlaws (except for himself, Maria and Bennet) will play in the Williow Creek bank robbery (in the edited English version, Jason's line "We go to Willow Creek, and knock off the bank" is used to create a transition shot to Bennet in the Mexican disguise he wears for the robbery).
• Bennet being pestered by Paco, the Mexican peasant, followed by Mrs. Watson's (Mrs. Lee in the English version) argument with Willow Creek's sheriff about Siringo's letter regarding the robbery, just before Fletcher and Maria enter town. (In the uncut version, she throws away Siringo's letter in anger over the sheriff's lack of cooperation. In the edited English version, she throws the letter away after apparently using it as a tissue.)
• A brief close-up of Fletcher walking towards the bag of stolen money during the bank robbery shoot-out.
• A discussion between a group of lawmen about Fletcher's rise to power among Bennet's Raiders and Siringo's hunting for Aaron Chase.
• An extra shot of Fletcher's men watching a goon punch Wallace (on Explosive Media's 2-disc release, the groan Wallace makes is unique; on the Blu-ray and single-disc DVD, the groan is a repeat of one Wallace makes earlier in the scene).