For My Beautiful Wife To Be

My fiance would like the yellow dress that Belle (from Beauty and the Beast) wore in the movie to wear as her wedding dress so i have made it my personal mission to find this for her. I have seen the dress lines that say they are Belles dress but she wants the one that looks just like it. She doesnt belive it can be done and I want her to belive she can have anything that she wants on our special day. Does anyone know where I can find the exact dress for her? Thank you everyone