and i'm your host, bill kurtis. it's 70's hollywood, "through the decades." in the 1970's the country went through a political crisis with watergate, a rising unemployment rate and an energy crisis fueled by gas shortages. to escape these pressures of reality, we turned to the movies and they gave us plenty to distract. here on "through the decades," we're going to spend the hour looking at some of our favorite offerings from hollywood in the '70s. from the uplifting tale of an unlikely boxing hero to the terrifying depiction of a young girl possessed by the devil. but we begin on the dance floor in the year 1977 . like "rebel without a cause" and "the graduate," "saturday night fever" captured a moment in 'young angst' and brought it to the big screen. john travolta's unforgettable dance moves combined with the bee gees soundtrack took disco mainstream along with a wave of platform shoes, wide lapels and neon lights. " it's new. it has a little bit of the new disco craze in it,and it has a guy named john travolta." at the time john travolta was alread a star