The Weapon is a 1956 black and white British thriller film directed by Val Guest and starring Steve Cochran, Lizabeth Scott, Herbert Marshall, and Nicole Maurey.

As he inches closer to finding Erik, Andrews comes across Vivienne Pascal, a dance-hall hostess with a connection to the gun's original owner.

As Andrews continues his investigation into the gun's whereabouts, Erik's mother Elsa finally locates her son with the helpful assistance of relative stranger Joshua Henry.

They debate the milk theft and it becomes clear that Henry has ill intentions, prompting Elsa to push Erik out of the car and run away.

The film was shot in the east end of London and at Walton Studios, with sets designed by art director John Stoll.

And he had come from poverty row, full of noises of what he'd done and he was actually one of the Bowery Boys, … still was and he really knew very little about everything... we shot all around the bomb sites around St Paul's Cathedral, an awful lot on location and some of it on Waterloo Bridge and Lambeth, it wasn't a very startling film, it was a good thriller.

"[4] The Monthly Film Bulletin wrote: "This somewhat synthetic re-working of The Yellow Balloon theme, set against varied London backgrounds, is enlivened by two mildly exciting set pieces: a chase through a riverside warehouse and the final fight on top of a gutted building.

[3] Leonard Maltin called it a "minor but trim story of youngster who accidentally shoots his pal and runs away.