It had been suggested that Working Title was in the "very early stages" of Bridget Jones 3, reportedly based on a series of newspaper columns by author Helen Fielding.
However, speaking to E! Online's Marc Malkin, Zellweger said: "I get asked every single day and I don't know anything. It's a rumour."
When asked whether she would consider appearing in an alleged stage musical based on the popular character, she replied: "I haven't been asked, [but] I think that would be weird. Do you think that would be weird?"
Bridget Jones's Diary, based on the bestselling book, was released in 2001 and took over $280 million worldwide. It later spawned a sequel, Bridget Jones: The Edge Of Reason, which grossed around $260 million.