Danger: Diabolik (1968) (American release poster)

Diabolik (also released as Danger: Diabolik) is a 1968 Italian espionage thriller film, directed by Mario Bava and starring American actor John Phillip Law and many actors/actresses who were familiar to Italian moviegoers. It is based on the Italian comic book series of the same name, starring Law as the titular master thief Diabolik. It is a heist thriller film with spy film elements, aimed at capitalizing on the James Bond craze of the 1960s. Though being an American, John Phillip Law was also fluent in Italian, which made him popular in that particular film market. Though the international title of the film was Diabolik (named after the titular character) it was re-titled by the distributor as Danger: Diabolik for its release in the U.S. theatrical market to enhance the 'adventure' aspect of the film, since the term 'diabolic' or 'diabolical' in American cinema marquees usually described horror or Alfred Hitchcock-style murder mystery films. It is noteworthy that the campy nature of the film made it a target of the MST3K (Mystery Science Theatre 3000) treatment.

Another Italian adaptation of the comics under the same name was released in 2021.

The following weapons were used in the film Diabolik:

Handguns

Colt Detective Special

A first-generation Colt Detective Special is seen twice in the film. Gangster Valmont (Adolfo Celi) uses a nickel version to shoot dissenting members of his gang. Later, police officer Sergeant Danek (Mario Donen) while disguised as a waiter, uses a blued version to shoot at Diabolik.

First-gernation Colt Detective Special - .38 Special

Valmont's nickel plated Colt Detective Special in his desk drawer. This looks to be the .32 caliber version since the cylinder seems smaller than the .38 Special variant.