 When Henry first goes to Wrigley Field as a pitcher, he goes to the  players entrance. When he knocks on the door to be let in, an old  man pokes his head through a hole in the door. At first he doesnt  let Henry in, then Henry reveals who he is, and the old man says,  "Well thats a horse of a different color," which is the same thing  that was said in _Wizard of Oz, The (1939)_ (qv) when Dorothy and  the gang get to Oz.