Jessica Biel wore this gorgeous strapless Oscar de la Renta dress to host the Sci-Tech Oscars. I just love the colorful brocade. She accessorized with Martin Katz diamonds. What in the world are the Sci-Tech Oscars you ask? They honor the more technical side of movies that most people don't understand.Ed Catmull, president of Pixar Studios, won the Oscar for lifetime achievement in computer animation. Excerpts of this will air on the Oscars on February 22.