As was stated earlier, it is possible to use one long boolean expression in place of several other shorter ones. To replicate the final_crit_a variable from step 1 with one long line of code, we can do the following:

>>> final_crit_a2 = (movie.imdb_score > 8) & 
                    (movie.content_rating == 'PG-13') & 
                    ((movie.title_year < 2000) | 
                     (movie.title_year > 2009))
>>> final_crit_a2.equals(final_crit_a)
True