Return of the Living Dead (1985) - Return of the Living Dead, which requires no explanation, I hope...takes place during the 4th of July Holiday in the United States.
Two Thouand Maniacs! (1964) - Now, when do we think the Guts and Glory Jubilee takes place? Its, of course, during the 4th of July when the South get revenge on the Northerners from the United States (Yankees).
Cape Fear (1991) - A convicted sexual offender (raper - yup, i said raper) is released from prison after serving 14 years to stalk the family of the lawyer who defended him. This movie also takes place during the 4th of July festivities. This is one of Robert DeNiro's more interesting and riveting performances, in my opinion.