Modesty Blaise (1966)
The original adaption of the comic strip series - staring Monica Vitti (“Modesty”) and Terence Stamp (“Willie Garvin”). Several (or soon to be) big names also appeared in this film: Dirk Bogarde, Harry Andrews and Michael Chow, to name but three.
The scene in question has Rossella Falk (“Mrs. Clara Fothergill) judo flipping and then killing a man by squeezing him between her thighs. Very Sexy if you ask me!!! VeVe Lane produced a tribute video to this scene several years ago. Highly recommended.