The Lavender Hill Mob

After 20 years of faithful service, a mild-mannered transporter of gold bullion decides to steal one million pounds' worth. He enlists an old pal, they team up with two professional crooks and the scheme is launched. After a successful hijack, the group melts down their booty, molds it into small souvenir Eiffel Towers and ships it off to Paris. They follow the gold, only to learn that six of the Eiffel Towers have been purchased by a group of daytripping English schoolgirls. In the opening sequence Alec Guinness hands a cute young woman some money and tells her to buy a little gift. You'll have to look fast to recognize Audrey Hepburn as the little girl. (CineBooks' Motion Picture Guide)