Well since probably my favorite film focusing solely on revenge was mentioned (She-Devil), I'm gonna have to go ahead and list those that pale in comparison.
Jaws: The Revenge - The first Jaws is incredible, but not really about revenge. The fourth installment, with revenge blatantly placed in the title, is a great little B-movie that increased my fear of sharks and has made me vow to myself to never get on a floatation device that gets dragged behind a boat: cause you know great white sharks love that shit.
I was recently able to see Machine Girl which was insanely gory and loaded with laughs. Premise: a young school girl gets revenge by attaching a Gatling gun to her amputated forearm and killing the bullies that picked on her and her brother.
A Nightmare on Elm Street is more or less a revenge flick about Freddy killing the kids of those who killed him.
Carrie gave mousy nerds in high school hope of becoming telekinetic and getting revenge on all those snot nosed cheerleaders and jocks.
Death Becomes Her is all about revenge between two woman that continues throughout their entire lives.
Dick presupposes that Deepthroat was just getting revenge on Nixon.
Election is yet another meditation on revenge set in high school. Pick Flick or suffer the wrath of Reese Witherspoon!
Friday the 13th. No explanation needed.
Gladiator Maximus is all up on getting revenge.
Hackers spends half the film getting revenge on those that dare to mess with computer nerds and their porn.
Hard Candy was a very twisted revenge thriller.
Jawbreaker and Mean Girls focus on big breasted teens plotting each others demise.
Overboard has a lowly carpenter getting revenge on a bitchy debutante by surreptitiously making her into his wife and the father of his children when she gets amnesia.
Rushmore has fantastic moments of revenge between Max and Mr. Bloom.
The "Non-Fiction" part of Storytelling has a great bit of revenge at the end.
The First Wives Club is a guilty pleasure about scorned ex-wives getting revenge on their husbands that left them for younger women.
The Incredibles centers around Syndrome getting revenge on super-heroes.
What Ever Happened To Baby Jane? is some classic screen legend revenge.
Lastly, Wild Things. Great B-movie with acts of revenge and lesbian trysts around every corner.