Renée Zellweger would only reprise her role as Bridget Jones if she was personally asked by the book's author. Renée, who portrayed the ditzy character in 'Bridget Jones Diary' and 'Bridget Jones: The Edge of Reason' , insists she will only get involved in the project if author Helen Fielding contacts her. She told Britain's OK! magazine: "I don't know if I would do it, it depends on many factors. First, Helen Fielding would have to ask me to come back and then there has to be a script that we can all agree on." The 37-year-old star insists she would be happy to gain a lot of weight again to play Bridget. Renée, who bulked up on the last two occasions by gorging herself on doughnuts and junk food - said: "I wouldn't have any problems with putting on weight again. I've said it before, I like it when I look a little more voluptuous. The weight issues would be the least of my concerns."