What makes a film an Irish film?

Sir, – The statement by director John Michael McDonagh ("Director of The Guard says Irish films are not 'intelligent'", September 15th) that the film Calgary "is not an Irish film, it's just set in Ireland with lots of Irish characters" brings to mind the words of the American writer James Whitcomb Riley – if it walks like a duck, swims like a duck and quacks like a duck then I call that bird a duck. – Yours, etc,

ERNEST F CROSSEN,

Knockmaroon Hill,

Chapelizod,

Dublin 20.