The sound comes from the James Bond film series and its famous theme, first heard in Dr. No in 1962 and closely associated with composer Monty Norman and arranger John Barry. Its gun barrel openings and stylish title sequences helped turn the guitar and brass motif into shorthand for espionage in popular culture. Clips of the intro later spread through games, trailers, edits and soundboards, where creators reuse the opening seconds whenever a character needs an instantly recognisable spy entrance without showing any actual footage from the films.