Farewell, Friend (original title Adieu l’ami; also released as Honor Among Thieves) is a 1968 French-Italian crime movie directed by Jean Herman and starring Alain Delon and Charles Bronson as two former legionnaires, medical service lieutenant Dino Barran and paratrooper Franz Propp.
Smith & Wesson M1917
A Smith & Wesson M1917 revolver is a plot device of the film. It belongs to Dino Barran (Alain Delon) and is also seen in hands of Franz Propp (Charles Bronson) and Isabelle Moreau (Olga Georges-Picot). In the novelized version of the screenplay (both by Sebastien Japrisot) the revolver is called ".45 Smith & Wesson".
When the muzzle of the revolver is closely seen in the climactical scene, it appears to be of lessel caliber (like .22), supposedly by inserting a small caliber barrel inside the one of the revolver.
Smith & Wesson Model 36
Security guards in SYNTECO building carry revolvers in holsters.
Gevarm Type D4
One of the French policemen is seen with a Gevarm Type D4 submachine gun in hands.
A MAT-49 SMG is used by a plainclothed police detective in the final scene.