When I write Bridget now, I write for Renée,” Fielding told PEOPLE. Zellweger starred as titular character Bridget Jones in the 2001 film adaptation of Fielding’s novel, a

The actress, 55, has reprised the role for the final installment in the franchise, Mad About the Boy, and at the New York City premiere on Wednesday, Feb. 12, the star exclusively told PEOPLE that she’s feeling emotional about saying farewell.

Mad About the Boy’ director Michael Morris spoke to Us about Renee Zellweger's return to the titular character