The Long Arm

aka The Third Key

Poster of The Long Arm

Scotland Yard’s most baffling case…

The Long Arm (1956) follows a Scotland Yard detective leading an investigation into a string of coordinated burglaries across London. As the inquiry connects multiple crimes to a single criminal network, methodical police work gradually closes in on the perpetrators. This British crime film blends procedural detail and realism in a story of persistence, coordination, and law enforcement strategy.

Selected disc options for The Long Arm

Extras
Kino box art
Kino BD-A/US 2026
Optimum box art
Optimum DVD-2 PAL/UK 2008
Audio Commentary by Laurence Lerman
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Notes

  • Kino’s Blu-ray is included in “Brit Noir: Collection II” box set with Home at Seven (1952) and The Intruder (1953).
  • Optimum’s “The Ealing Studios Collection” DVD contains no extras.

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