The following guns were used in the 1991 film Hudson Hawk:
Smith & Wesson Model 10
A Smith & Wesson Model 10 is seen used by one of the New York auction house guards, Big Stan (Robert Vazquez). Anna Baragli (Andie MacDowell) later wields one in the film's climax which she retrieves from a scientist.
When the Mario Brothers kidnap Eddie a.k.a. Hudson Hawk (Bruce Willis) in an ambulance, Antony Mario (Carmine Zozzora) points an M1911A1 pistol at him. A struggle ensues which results in the gun winding up in the hands of Antony's brother, Cesar Mario (Frank Stallone).
Smith & Wesson Model 64
The CIA agents, all with candy bar codenames - "Kit Kat" (David Caruso), "Snickers" (Don Harvey), "Almond Joy" (Lorraine Toussaint) and "Butterfinger" (Andrew Bryniarski) - all carry stainless steel Smith & Wesson Model 64 revolvers with pearl grips.
Beretta Model 70
Numerous characters use Beretta Model 70's. They are first seen in the hands of a Vatican guard (John Lucantonio), and in a later scene Anna Baragli (Andie MacDowell) attempts to apprehend George Kaplan (James Coburn) with one. At the end, one fitted with a suppressor is used by Darwin Mayflower (Richard E. Grant).
Beretta 3021 Tomcat
After the Mayflowers' henchmen, the identical twins "Igg" and "Ook," perform badly, Darwin jokingly suggests killing them. Minerva Mayflower (Sandra Bernhard), however, thinks he's being serious.
When Tommy Five-Tone (Danny Aiello) shows up in Rome to tell Eddie that he has betrayed him, he takes out a Browning Hi-Power. Tommy and Eddie fight over the gun and Eddie ultimately shoots Tommy with it, only to discover it was loaded with blanks, part of a ruse to fool the Mayflowers. During the struggle, due to a continuity break it briefly turns into a Star 30M.
The CIA agents carry a launcher of some type concealed in a golf bag (the butt is disguised as a club wedge). It fires suction cup tipped explosives with timers on them. When fired they attach themselves to the target and cannot be removed, and explode after a set time. If fired without being primed, they have only a short delay before exploding. Eddie and Tommy appropriate this weapon and use it during their assault on Castle Da Vinci. Later, Alfred (Donald Burton) uses the weapon to blow up his employer's car.
The Uzi is used by the Mayflowers' purple-uniformed guards at Castle Da Vinci. CIA operative "Butterfinger" also uses one.