Renee Zellweger will never "let go" of Bridget Jones.The 55-year-old actress returns as the character for the fourth and final time in the upcoming movie 'Bridget Jones: Mad About the Boy' but admits she will always be attached to the role that she has played for over two decades.Asked what she'll miss about the franchise, Renee told The Hollywood Reporter: "I'll miss spending time with everyone that's involved, friendships new and old."I don't think I'll ever let go of Bridget. I have conversations about Bridget Jones pretty much every day. I meet people on the sidewalk and they want to share about their own Bridget Jones experiences. All my friends call me Bridget!"The new picture sees Bridget as a widow following the death of her husband Mark Darcy (Colin Firth) and Renee admits that the plot development changed the way she played the...