Revenge for Jolly is a 2012 American black comedy-drama written by & starring Brian Petsos as a man who avenges the death of his beloved dog. Oscar Isaac, Elijah Wood, Adam Brody, Ryan Phillippe and Kristen Wiig co-star.

Harry is having a very, very bad day. He returns home from an all-night drinking binge with his cousin Cecil to discover that his little dog Jolly—Harry's one true love and the source of light in his dark, solitary life—has been murdered. Brokenhearted and beyond consolation, he vows to track down the dog's murderer at any cost.

Armed with a stockpile of firepower in the trunk of his car, he and Cecil embark on a frenzied, alcohol-fueled wild-goose chase, leaving a bloody path of destruction in their wake.

Revenge for Jolly Movie Review

"…Revenge for Jolly! tells the story of a hard-living, bleary-eyed hustler and small-time criminal played by Brian Petsos (who also wrote the surprisingly sharp screenplay) who treasures one thing above all else in his shadowy and drunken existence: the love and companionship of Jolly, a wonderful dog he treats with a heartrending tenderness that belies the hardscrabble nature of the rest of his life. Jolly is just about the only thing Petsos has in the world beyond a drinking problem and a history of terrible mistakes he was too blacked out to remember. So his world is ripped asunder when he comes home to discover that Jolly has been killed by an unknown perpetrator.

Petsos isn’t just upset. He’s destroyed in a way that never abates over the course of the film. His anger, grief, and sense that nothing can ever be right ever again consume and define him. Petsos’ rage takes on an almost physical presence; he carries it around with him, as a big black cloud that follows him everywhere, like Pigpen’s trail of dust.
To its credit, Revenge For Jolly! takes Petsos’ despair seriously. It grounds the film in real, palpable human emotion before it quickly takes a turn into pitch-black comedy. Petsos recruits his equally fucked-up drinking buddy and cousin (Oscar Isaac) on an epic mission of revenge on the motherfuckers who killed Jolly, which quickly elevates into a bloodbath.
The drunken, despondent duo’s first trip is to visit bartender Elijah Wood, one of a number of high-profile guest stars Petsos and Isaac kill in their quest for vengeance. In an indication of what’s to come, Petsos guns down Wood for downplaying the nature of the tragedy because it’s “only a dog,” which I think we can all agree is a tad excessive, but wholly understandable given the circumstances.

Early in the quest, Petsos relates to Isaac a perfect evening he spent with Jolly, where he put together a jigsaw puzzle of the Eiffel Tower, drank beer, and fed Jolly a bologna sandwich. It’s a poignant scene that beautifully captures the transformative power of being a pet owner and the intense emotional connection people feel with animals. A pet owner’s life is made up of thousands of those perfect little moments of connection and bliss, which collectively compose the big love between an animal and its human companion.
Yet this is but a quick breather from the main crusade, as Petsos and Isaac continue their bloody mission of vengeance, a casualty-strewn path that takes them in the direction of a dead-eyed hooker played by Gillian Jacobs, a pair of ponytail-sporting asshole lawyers played by Adam Brody and Bobby Moynihan, and a wedding where Kevin Corrigan drunkenly and indecently spills out a whole lot of weird family backstory while delivering a toast to the union of Kristen Wiig and Garret Dillahunt.

Revenge For Jolly! has a brilliant sick joke in one suffering man’s grief over an adorable dog leading to a full-on massacre of human beings, most of whom have nothing to do with Jolly’s death. The film is powered by an intense fatalism, as two men with nothing left to lose burn themselves out fighting one last doomed cause. It suggests an exciting new subgenre in canine noir, darkly comic thrillers dedicated to chronicling the spiritual bond between man and man’s best friend in the most dark, cynical, violent manner imaginable.
Revenge For Jolly! is often corrosively dark and incredibly bloody, but there’s a powerful sincerity at its core. It is, without a doubt, the most unexpectedly poignant movie ever made about a silly little dog.." AV Club