Clerks (1994)

Clerks (1994) proves a $27,575 budget—less than 2% of #2's—can launch a franchise, as Kevin Smith's black-and-white comedy grossed $3.1 million from credit-card funding alone. Shot in the convenience store where Smith worked, its profane, pop-culture-laced dialogue and slacker ethos captured Generation X with more authenticity than the typical Hollywood comedy. The film's Askewniverse expanded into eight films and a TV series, earning 87% on Rotten Tomatoes despite zero studio backing. At 92 minutes, it delivers sharper humor than many ten-times-costlier rivals, standing as the ultimate proof that a shoestring budget fuels iconic indie spirit.