Good Will stars' fishy venture

Affleck (left) and Damon win the original screenplay Oscar for Good Will Hunting

Actors Ben Affleck and Matt Damon have collaborated once again, this time on a sculpture to be auctioned for charity.

The actors have designed a fibreglass cod sculpture, called Good Cod Hunting, a reference to the film which propelled them to Hollywood fame.

The two stars appeared in Good Will Hunting, in which Damon played a mathematical genius who comes to the attention of university tutors when he writes the answer to a maths problem on the college blackboard where he works as a janitor.

The cod is painted black and has a mathematical equation on one side and the answer on the other. The tail has been signed by the actors.

The two actors designed the fish with the help of Boston artist Nicholas Doriss. (CORR)

More than 100 cod have been designed by artists, children and celebrities and are displayed throughout the city of Boston, in a public art exhibition called Cavalcade of Cod.

The fish will be auctioned at the Massachusetts College of Art on 8 December. Other fish sculptures will be sold in a silent online auction.

The auction will benefit several charitable causes, including the Boston Public Library Foundation and the American Cancer Society.