25 best spy movies ever

Charade (1963)

Audrey Hepburn plays Reggie, a widow who's pursued through Paris by a gang of ex-OSS agents trying to track down her husband's ill-gotten fortune. Cary Grant is Peter, a charming stranger who helps her – but is he all he seems?

Everyone's wearing a mask in this frothy, fun escapade – it's as cool as… well, as Cary Grant and Audrey Hepburn running around 1960s Paris in a comedy adventure caper.