Monty Python's Life of Brian (1979)

The greatest religious satire ever made—and arguably the funniest British film, earning a 95% Rotten Tomatoes score from 66 reviews. Banned in several countries on release, it follows Brian Cohen, a reluctant messiah born in the stable next door to the Nativity. Outperforms #4 by using humor to explore faith deeply without graphic violence, yet its 'Always Look on the Bright Side of Life' became an anthem sung at 30% of British funerals within a decade. Poking fun at blind devotion while respecting belief, it remains sharper than the average modern comedy—its box office of $20 million (on $4 million budget) shows lasting appeal. Still courageously funny after 45 years.