The Make Mine Milk campaign has unveiled the ­latest celebrities to sport a milk moustache, with actors Ryan Reynolds and Rupert Grint fronting this spring's activity.

Reynolds, whose film Green Lantern opens in the UK this summer, is already fronting the American generic milk marketing campaign Got Milk?, making his involvement in Make Mine Milk in the UK the first time the two marketing teams have formed an international partnership.

Milk Marketing Forum chairman Sandy Wilkie said the two actors embodied the "young and healthy" message the campaign was keen to put across.

Posters featuring Grint and Ryan will be going up across England, Scotland and Wales from Monday. Previous celebrities involved in Make Mine Milk include Gordon Ramsay, Pixie Lott, Jenson Button and supermodel Elle Macpherson.