Eurovision Song Contest: The Story of Fire Saga, the Will Ferrell and Rachel McAdams-starring Netflix film that's sweeping the nation, is based on a genuine, bonafide musical competition. The Eurovision Song Contest has been a mainstay of European culture since 1956. During each competition, countries submit just one song to represent their "best song of the year," competing against other countries in lavish, delightful, and usually very silly performances. A jury comprised of representatives from all of these countries assign each song a series of points (they're not allowed to vote for their own country), yielding a …