"Cinderella Man" origin?; More "Big Apple" specialists?

[Bapopik at AOL.COM]

CINDERELLA MAN
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_http://www.imdb.com/find?q=%22cinderella%20man%22;s=all_
(http://www.imdb.com/find?q="cinderella%20man";s=all)
_The Cinderella Man_ (http://www.imdb.com/title/tt0007795/)  (1917)
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I haven't seen the movie CINDERELLA MAN, but was the  nickname influenced by
the 1917 movie of the same title?
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FWIW: MY AMAZON REVIEW
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Another review was added for the ENCYCLOPEDIA OF NEW YORK STATE. Too bad I
can't comment on it.
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(AMAZON.COM)
Great Encyclopedia, June 20, 2005
I got my copy and  am impressed. Peter Eisenstadt did a great job for the
Encyclopedia of New York  City and now for the Encyclopedia of New York State. I
especially like its  eclectic selection of entries, besides old standbyes such
as "Big Apple" (for  which there are several specialists), also "sausage
making in NYS," my  fave.
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There are several "Big Apple" specialists? Who are they? They've written
books? Papers? Who? Nancy Groce? That "Big Apple" classic, SONGS OF THE CITY by
Nancy Groce?
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The sausage making article? This person liked the line "'Hot dogs' were a
popular snack, and the nickname was first recorded in 1895"? Got a lot of money
and credit for that one. Is this some cruel joke?
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Who is this reviewer, "karpaten" from Albany, NY? I just e-mailed this
person (listed in the YAHOO! member directory), so stay tuned for those other  "Big
Apple" specialists!