The right logo says a lot about a company. MGM wouldn't be MGM without its lion. Amblin is defined by E.T. in a bike basket. And where would Pixar be without its hopping desk lamp? Then there's the logo for Team Downey, the production house that Robert Downey Jr. and his wife, Susan, opened a little more than four years ago. It's in the shape of a yellow street sign, with a cutely drawn stick-figure mental patient in a straitjacket being chased by a stick-figure nurse with a butterfly net.