That IS a good enough offer for me! Colin Firth and Hugh Grant agree to reprise their roles alongside Renee Zellweger in fourth Bridget Jones film

For decades they have fought over singleton Bridget Jones as she searches for The One.

And now it can be revealed that Colin Firth and Hugh Grant are back to reprise their roles as Mark Darcy and Daniel Cleaver.

Firth and Grant, both 63, have agreed to be part of the fourth – and probably final – Bridget Jones film which begins shooting in London in May and will again star Renee Zellweger.

Sources say the directors are ‘ecstatic’ that both agreed to star in the film. One insider said it ‘would not have been the same’ without them, adding: ‘Both men are very much in demand so to make everything come together feels like a great coup. However it ends for Bridget, there will be some rollercoaster rides with these two men involved.’

Hugh Grant, Renee Zellweger and Colin Firth at the Berlin premier of the original Bridget Jones film in 2001

Firth and Grant's characters famously came to blows in the street in the first film

Star Renee Zellweger, 54, is scoping out a base for her and her British boyfriend, Ant Anstead, in the London area while she films

Zellwegger in the franchise's sequel, Bridget Jones: The Edge of Reason, which came out in 2004

Emma Thompson and Renee Zellweger in the third film of the series, Bridget Jones's Baby, filmed in 2016

Last month, The Mail on Sunday revealed that Helen Fielding’s heroine would make a sensational return 23 years after the first film, Bridget Jones’s Diary.

Pre-production is under way and Ms Zellweger, 54, is scoping out a base for her and her British boyfriend, Ant Anstead, in the London area while she films.

The new film comes eight years after the last instalment, Bridget Jones’s Baby, and is based on Ms Fielding’s 2013 novel, Bridget Jones: Mad About The Boy, which saw her as a single mum.

The last film ended with her marrying Darcy, the high-flying lawyer – based on the Jane Austen character – who she has on-and-off feelings for throughout the previous films. It was also revealed he is father to her baby.

Grant didn’t appear in that film and was presumed dead at the beginning. But at the end there was a newspaper report that said he had been found alive – giving lothario Cleaver a way back for the finale.

In the Mad About The Boy novel, Darcy is dead, leaving Jones as a widow – although it is not known if the new movie will be faithful to that.