Rolling Thunder - This is up on Hulu, but not on DVD, if anyone's interested. It's a gritty, late 70s revenge flick with a script by Paul Schrader (!), starring William Devane. Also featuring Tommy Lee Jones. Both of which play newly returned POWs from Vietnam, both of them suitably unhinged. Some people kill Devane's wife and kid. Revenge ensues. There's a look on TLJ's face towards the end when he's about to shoot someone and he looks SO HAPPY, and it's great.
Race with the Devil - Peter Fonda, Warren Oates, and their wives witness a cheesy satanic ritual while on vacation in their RV. It drags a bit in the middle, but the ending is awesome, and features a bunch of car stunts!
