Not as good as David Bowie's cameo, not as desperate as a sit-in with Jay-Z. Still, we applaud Mr. Paltrow's self-deprecation in this clip from "Extras." He breaks into "Fix You" at 3:18. Do with that information what you will. [videoembed size="full_width" alignment="center"][/videoembed] Is it just us or is he always just on the verge of missing every note of ...