The gold comes on top of two Silvers also awarded for the campaign in the Film Craft category earlier in the week.
The Grand Prix was handed by Ireland’s Rothco/Accenture Interactive for "JFK Unsilenced" on behalf of The Times.
Three other Golds were awarded in the category, including one for San Francisco’s Eleven for "Know What Your Data Knows" for Google, with eight silvers and 13 bronzes.
The US won three silvers – Energy BBDO Chicago’s "National Safety Council ‘Prescribed to death’" for National Safety Council; Goodby Silverstein & Partners San Francisco for "Data Into dollars" on behalf of Xfinity; and Mcgarrybowen New York for United Airlines' "Time data taxi top campaign".
The US racked up three bronzes with Havas New York, MRM/McCann New York and Toyota USA, Piano/Saatchi & Saatchi Toyota Agency, Torrance, all picking up honours.