The following weapons were used in the film The Big Bang:
WARNING! THIS PAGE CONTAINS SPOILERS!
Colt MK IV Series 80
Private Eye Ned Cruz (Antonio Banderas) uses an Colt MK IV Series 80 pistol as his sidearm throughout the film. The Colt MK IV Series 80 1911 on the film's poster is an enhanced model with a flat top slide with slanted serrations and a beavertail grip safety compared to the base model version used in the film.
Blued Colt MK IV Series 80 - .45 ACP
A Colt MK IV Series 80 being fired during the opening credits.
Cruz prepares to reach for his .45, as Anton 'The Pro' walks in his office.
Cruz pulls out his 1911 to get rid of his "tail".
Cruz cocks his 1911 near the climax.
Cruz holds the situation together with his 1911 in hand.
Detective Poley (William Fichtner) keeps a nickel plated Colt Python with pearl grips as his sidearm. Julie Kerstal (Sienna Guillory) also briefly handles it. Ned Cruz uses Det. Poley's sidearm during the climax.
Colt Python Stainless Steel variant with 4" Barrel and Colt marked Rubber combat grips - .357 Magnum
Det. Poley with his Python holstered. Note the pearl grips.
Det. Poley decocks his Python after waving it during Cruz's interrogation.
Cruz fires Poley's Python.
Smith & Wesson Model 10 (snub)
Detectives Frizer (Thomas Kretschmann) and Skeres (Delroy Lindo) both uses snub-nosed Smith & Wesson Model 10 revolvers as their sidearms. Cruz (Antonio Banderas) is forced to handle Det. Frizer's Model 10 briefly, to get his fingerprints on the gun.
Smith & Wesson Model 10 snub nose revolver - .38 Special
Det. Frizer swings open the cylinder and spins it.
Ned Cruz gets the business end of a Model 10 pressed to his head, courtesy of Det. Skeres.
Det. Frizer and Det. Skeres fire their Model 10 revolvers.
The detectives both reload their snub-nosed revolvers. Both actors use the guns' ejector rods to push out the empty .38 shell, instead of just vigorously shaking the guns. This is quite rare in Hollywood.
Remington 1866 Derringer
A nickel Remington 1866 Derringer with pearl grips is seen handled by Niels Geck (Jimmi Simpson), and Det. Poley (William Fichtner).
Remington 1866 Derringer, polished steel with yellow pearl grips - .41 R.F. Caliber
Niels Geck holds his Derringer on Anton Protopov.
Det. Poley holds Geck's Derringer.
Advanced Taser M26
A club bouncer tries to take Anton 'The Pro' Protopov (Robert Maillet) down with an Advanced Taser M26 as he's getting a bit too rowdy near the beginning of the film.
'The Pro' gets hit by the taser.
'The Pro' with the taser darts on his chest.
The Sikh bodyguards employed by Simon Kestral (Sam Elliott) are seen carrying compact semi-auto handguns in holsters. They could be Glock 19s, or propwise plastic or rubber casts of the real things, just that the holsters wouldn't look empty.
The Sikh on the left has a gun in a holster on his left side.