Mickey's Twice Upon a Christmas

Mickey's Twice Upon a Christmas DVD Review: "Two different computer animation production companies worked on animation for this DisneyToon Studios feature."

Which two? Luxo says "Disney recently announced its plans to build a new animation studio to create feature film sequels to hits it made with Pixar..."

I thought this show was the debut of 3-D computer animation for Disney's new studio. You know, like a proof of concept project, so they can do Toy Story 3.