First conceived for Irish radio and then as a series of books, the misadventures of feisty Dublin matriarch Agnes Brown (Brendan O'Carroll) transitioned seamlessly from stage to the small screen in 2011 with the birth of the BBC sitcom Mrs Brown's Boys.

Creator O'Carroll cast numerous relatives and friends in supporting roles, ensuring that the programme was a family affair.

Critics may not have been kind but the series, which is recorded live in front of an audience and incorporates out-takes, quickly gained an ardent following.

Now, Agnes and her crazy kin stampede onto the big screen under the watchful eye of director Ben Kellett. Lord help anyone who gets in her way!

Agnes proudly runs a fruit and vegetable stall in Moore Street Market, continuing a tradition that has been passed down in her family for generations. She hopes to pass the stall to daughter Cathy (Jennifer Gibney) but a dastardly developer intervenes with plans to bulldoze the market.

Aided by Cathy as well as next-door neighbour Winnie (Eilish O'Carroll) and her sons Mark (Pat Shields), Rory (Rory Cowan) and Dermot (Paddy Houlihan), Agnes resolves to take on the Irish establishment and give it a good spanking.

She is aided by a troop of blind trainee Ninjas tutored by Buster Brady (Danny O'Carroll), an alcoholic solicitor and a barrister called Maydo Archer (Robert Bathurst), who is prone to the occasional outburst of Tourette's.