Claim: Gillian Anderson acts.

The Mighty Celt is a 2005 drama film set in Northern Ireland , written and directed by Pearse Elliott . It stars Gillian Anderson , Robert Carlyle , Sean McGinley , Ken Stott and Tyrone McKenna . It is centred on greyhound racing in a Catholic community after the intercommunal `` Troubles '' have ended but where their legacy remains strong . The film was well received in Ireland , with Gillian Anderson receiving an IFTA Award for Best International Actress . The film 's title is based on the name of a comic book shown in the movie .