Sci-Fi/Dystopian:
* The Hunger Games (2012-2015): Katniss Everdeen rebels against the oppressive Capitol's control over the Districts.
* Divergent (2014-2016): Tris Prior challenges the rigid social structure of her faction-based society.
* V for Vendetta (2006): A masked vigilante fights against a fascist regime.
* The Matrix (1999): Neo fights against the simulated reality controlled by machines.
* Brazil (1985): A hapless government worker rebels against the oppressive bureaucracy.
* 1984 (1984): Winston Smith defies the totalitarian regime of Big Brother.
Crime/Thriller:
* The Godfather (1972): The Corleone family challenges the established order of the criminal underworld.
* Scarface (1983): Tony Montana rises to power in the drug trade, defying authority and eventually facing the consequences.
* The Departed (2006): An undercover cop and a mole in the Irish mob clash in a dangerous game of deception.
* Training Day (2001): A rookie cop faces a corrupt veteran detective who pushes him to the edge.
* The Wire (TV series): A complex and realistic look at the drug trade in Baltimore and the societal forces that shape it.
Drama/Social Commentary:
* The Shawshank Redemption (1994): Andy Dufresne seeks redemption and justice while imprisoned in a corrupt system.
* A Beautiful Mind (2001): John Nash struggles against mental illness and societal prejudice.
* Crash (2004): An interconnected story exploring race relations and societal tensions in Los Angeles.
* Parasite (2019): A poor family infiltrates the life of a wealthy one, exposing the stark class divide.
* The Wolf of Wall Street (2013): Jordan Belfort lives a life of excess, defying societal norms and ultimately facing the consequences.
Action/Adventure:
* Mad Max: Fury Road (2015): Max Rockatansky rebels against the oppressive forces of Immortan Joe in a post-apocalyptic wasteland.
* The Road Warrior (1981): Max battles against gangs and marauders in a post-apocalyptic world.
* The Raid: Redemption (2011): A SWAT team fights its way through a high-rise building controlled by a ruthless crime lord.
These are just a few examples, and there are many other great films that explore this theme. Consider what aspects of society the protagonist is challenging (political, social, economic) and what genre best suits the story you're looking for.