Aircraft Type in the first 'The Italian Job' film?

[Tempsford]

I watched the above film today and wondered if someone could please tell me what the aircraft type was in the above film. 4 Piston engines, fin was huge and its leading edge was near vertical with the top almost squared off. Multiple panelled glazing flight deck. The fuslage looks like it could have had two decks. Plus the Flap Screw Jacks had Fairings.

Thanks,


Temps