With the 2018 PyeongChang Winter Olympics approaching early next month, Chariots of Fire (1981) is one of the better movies referencing the Olympics. The theme song played in the clip below is iconic. This is definitely an inspiring film and worth checking out to get you into the mood.
From imdb.com
Two British track athletes, one a determined Jew and the other a devout Christian, compete in the 1924 Olympics.