NEED HELP IDENTIFYING A FOREIGN FILM FROM THE FIFTIES, POSSIBLY SIXTIES

MOVIE WAS IN BLACK AND WHITE. A COUPLE IN THE MOVIE COMES ACROSS A STREET PERFORMER WHO HAS AN INCREDIBLE KINETIC ART MACHINE, MAYBE EVEN LIKE A RUBE GOLDBERG CONTRAPTION. I'VE LOOKED EVERYWHERE, INCLUDING BLACK AND WHITE MOVIES BY DECADE, MOVIES THAT DISPLAYED KINETIC ART, ETC. AND I HAVE BEEN UNABLE TO IDENTIFY THIS OBSCURE FILM. MUCH APPRECIATED IF ANYONE HAS ANY INSIGHTS. IT MAY HAVE BEEN A FRENCH FILM, OR MAYBE AN ITALIAN FILM....I CAN'T SAY FOR SURE AS THIS WAS YEARS AGO.