As an IMDb reviewer put it: Here is a movie that could have been a 60s classic lampooning tabloid journalism, skin-deep psychology, proto-feminism, marital problems, hypocrisy, and sexual freedom. Instead, it is a cartoonish pastiche of amateurish slapstick, poorly-time jokes, silly contrived situations, and one of the most idiotic and long car chases in the history of cinema. The idea of a sleazy editor doing a hatchet job on a 23-year-old virgin psychologist who has written a bestseller affirming the sexual lives of single women should certainly have hilarious possibilities - specially if he is a liar, she cannot handle her own feelings, and they are sexually attracted to each other. However, the script is ludicrous and inconsistent often degenerating into total silliness.
It must have been a difficult time for sex comedies as the swinging decade had yet to get underway ... the Rock and Doris comedies were sheer class, COME SEPTEMBER, THE THRILL OF IT ALL, THE PINK PANTHER, WHATS NEW PUSSYCAT? are perennial favourites and even 1964's GOOD NEIGHBOUR SAM had its moments, but SEX AND THE SINGLE GIRL is just painfully unfunny and dated now. That scene where they (Tony and Natalie) fall into the water and try to stay afload is not funny at all now. Then they all go zooming off to the airport (cue lots of back projection) in a silly ending. Its certainly one I do not want to re-visit or even think about ever again, and I thought PRUDENCE AND THE PILL was bad ! Super Trash then.
Soon: Tony and Janet in the long-unseen 1958 comedy THE PERFECT FURLOUGH (or STRICTLY FOR PLEASURE), I loved that as a kid, will I still like it now ?