Did you know that Josh Hartnett is a big fan of Mayo club side Kiltane?

They've got Hollywood on their side.

Actor Josh Hartnett expresses his support for Mayo side Kiltane in next Sunday's AIB All-Ireland Intermediate Club Football final against Monaghan side Truagh

The photo was taken last night in the Vintage Cocktail Club, Dublin. Hartnett is currently in Ireland shooting the upcoming drama 'Penny Dreadful.'