SCI FI Wire offers a video montage of interviews with Ratatouille writer/director Brad Bird and stars Patton Oswalt, Janeane Garofalo and Lou Romano. Meanwhile, Pixar illustrator and production designer Romano and story artist and animator Peter Sohn explain how they acquired the roles of Linguini and Emile for the film. In addition, Bird and producer Brad Lewis regard the research on rats and Paris that they conducted for Ratatouille.