The ad, which features footballer Wayne Rooney emblazoned with the St George's Cross, scooped the Best Individual Poster on Wednesday night at The Grosvenor.
Wieden & Kennedy also picked up the Clear Channel award for the Best Giant
Poster by draping a massive version of the image across the side of a London building.
Fallon's work for Tate Britain picked up a Gold award for best campaign, while the Campaign Readers' Award went to Nitro for its "1 London" ad created for the Greater London Authority.
DDB London was the most awarded agency on the night, with six wins.
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