KEYWORDS
  ========

Since version 4.0, it's possible (for every data access system) to
search for movies' keywords.
People's keywords are not supported.


  SEARCH FOR A KEYWORD SIMILAR TO A GIVEN STRING
  ==============================================

The search_keyword(unicode_string) can be used to search amongst
keywords: a list of keywords similar to the given string will be
returned, sorted by similarity.  Notice that the keywords in the
returned list are plain unicode strings, and not instances of
some class (like the ones returned by other search_SOMETHING methods).

E.g.:
  from imdb import IMDb
  ia = IMDb('http')
  print ia.search_keyword(u'alabama')


  GET A LIST OF MOVIES FOR A GIVEN KEYWORD
  ========================================

To get a list of movies that are tagged with the given keyword,
use the get_keyword(unicode_string) method.
E.g.:
  from imdb import IMDb
  ia = IMDb('http')
  print ia.get_keyword(u'alabama')

Beware that by default the list is limited to 100 movies, and
it's not possible to get more results, using 'http'.
Moreover, the lists returned using 'sql' are not sorted in any way.
Another limit is that actually (as of february 2009), the IMDb's
web server is unable to serve pages about non-ascii keywords.
It's a known problem of their systems.