Agatha Christie's Poirot: The Clocks
The Clocks is a feature-length episode in Agatha Christie's Poirot film series, the fourth in Season 12 (in DVD releases it's released as third episode).
The following weapons were used in the film Agatha Christie's Poirot: The Clocks:
Webley .455 Mk VI
Royal Navy Lt. Colin Race (Tom Burke) holds a Webley .455 Mk VI when he arrests Sheila Webb, suspecting her in espionage and murder.
A Luger P08 is used by a German agent Christopher Mabbutt (Stephen Boxer).
A medium caliber anti-aircraft cannon is seen in one scene. It looks mostly like a 94mm QF 3.7 inch AA gun but is fitted with a muzzle brake that was never used on 3.7 inch cannon.