New Jersey's movie is...

Clerks

New Jersey native Kevin Smith famously spent nights filming his first feature in the same convenience store where he worked during the day, taking the aphorism "write what you know" to heart. Although filmed for just over $27,000, Clerks went on to make over $3 million in limited release, and kickstarted a whole series of films in the "View Askewniverse," including Mallrats, Chasing Amy, and Clerks II, with most of the action (naturally) taking place in Smith’s home state.