A very good screenplay, a memorable theme tune, two leads who hit it off plus George Kennedy, Walter Matthau and James Coburn in a quality support cast.
You can expect the unexpected when they play..."Charade"
Reggie Lambert returns from Paris from a ski trip in the French Alps to find her house ransacked and her husband dead. His funeral is attended by some curious thugs including James Coburn and George Kennedy, each of whom makes sure that the dead man is indeed dead. Peter offers his assistance to Reggie, as does CIA man Bartholomew, who informs her that her husband was not the man she thought he was. Hepburn's growing romance with the suave Peter is delightfully handled and the location photography is exquisite. "Charade" is a truly classic romance.