"Charade" (1963) and "Wait Until Dark"(1967)
One of the nifty things about the movie business and movie history is how coincidences and connections can arrive between films..."just because."
And thus:
In 1963, Audrey Hepburn played a woman who is in possession of $250,000 in stolen loot -- somehow transformed in something else(but she doesn't know what.) And three crooks come after her and put the pressure on for her to give up something she didn't know she had and can't find now. ("Charade.")
In 1967, Audrey Hepburn played a woman who is in possession of thousands of dollars of drugs -- transformed into something else(in this movie, we know: a doll.) And three crooks come after her and put the pressure on for her to give up something she didn't know she had and can't find now. ("Wait Until Dark.")
"Charade" and "Wait Until Dark" were Audrey Hepburn's two thrillers of the 60's...and both were very big hits. You could figure that Alfred Hitchcock's movies were influences(Wait Until Dark was from a play by Frederick Knott, who also wrote Dial M for Murder, which became a 1953 Hitchcock film.) But both "Charade" and "Wait Until Dark" -- with matching Henry Mancini thriller scores -- were more "hip" and cool and in some ways, more funny than what Hitchcock had been doing in the fifties -- they reflected some new attitudes and new kinds of screenwriting. They were more violent than MOST Hitchcock movies, too -- except he had started the 60's with Psycho to up the ante on screen violence.
The big difference between "Charade" and "Wait Until Dark," is that in "Charade," Hepburn has help to deal with the thugs who are threatening her: Cary Grant, as cool and deadpan as ever(if finally visibly aged on screen.) "Charade" is a romantic thriller.
Meanwhile, in "Wait Until Dark," (a) Audrey's on her own against the crooks and (b) one of the crooks is cold stone psychopathic killer(if a funny one.) This is NOT a romantic thriller. There is no Cary Grant to protect her -- her rather hapless husband(Efrem Zimbalist Jr.) has been purposely misdirected way far away from Hepburn's apartment to give the crooks time to get their doll (and for one of them to decide to kill everybody.)
Using the Hitchcock analogy, you could say that Charade is a bit like "To Catch a Thief" or "North by Northwest"(with Cary Grant in all) and you could say that Wait Until Dark is a bit like "Psycho"(with the psycho villain doing some terrifying things during the "lights out" climax and the audience screaming at the top of their lungs.)
But whatever you say, both "Charade" and "Wait Until Dark" are great thrillers of the 60's and whatever they lose in "the Hitchcock touch" they make up for in casts, script and hipness.
To wit: in Charade, Hepburn is menaced by loping Texan James Coburn, hulking hook-handed George Kennedy, and sneezing Jewish guy Ned Glass. This even as potential allies Cary Grant(mystery man) and Walter Matthau(CIA man) seem to be not what they seem to be.
In Wait Until Dark, Hepburn is menaced by smooth Richard Crenna, rotund Jack Weston and absolutely off-the-charts creepy/funny Alan Arkin.
That's some great actors across both movies, some of whom were established stars(Grant, Arkin), some of whom were supporting actors (Matthau, Coburn...Crenna for awhile) who would become stars themselves, but ALL of whom are here serving the great Hepburn(even Cary Grant seems deferential to her; the "second banana.")
So when somebody asks you about "that thriller from the sixties where the three guys come after Audrey Hepburn to get a secret treasure she didn't know she had" -- make sure to pick the right one!
PS. Its Audrey's husband who starts all the trouble in both movies. In Charade, the husband is murdered in the first scene, and the baddies come after the cash he slipped to his wife in another form. In Wait Until Dark, the husband is alive but accepts a doll from a beautiful woman -- and she ends up murdered and the doll has valuable drugs and it ends up with Audrey.