Cars: After an incident where he gets lost and enters a hillbilly village, racer decides to lose the race of his life.
Cars 2: One of the racer's friends gets a second job.
Casablanca: After a long time, a guy meets his ex-girlfriend, who ditched him for another guy. He's bitter and jealous, but he begins to fall in love with her again. And then he forces her to stay with the other guy.
Or a guy falls in love with another man's wife. The husband forgives them because he likes fighting Nazis. Meanwhile a corrupt French cop closes down a bar after pocketing his winnings. He is notably shocked.
Or the wife of a handsome war hero falls in love with a bartender. The bartender refuses her because he prefers going to war beside a corrupt French cop.
The Chronicles of Narnia: The Lion, the Witch, and the Wardrobe: A girl discovers a fairyland inside the upstairs closet. Her siblings treat her badly until they make friends with an unwashed builder and his fussy wife, who teach them about Jesus. They proceed to save the day, then get home in time for supper twenty years later.
The Chronicles of Narnia: Prince Caspian: The four siblings learn that the Doctor was correct and that time really is just a big ball of wibbly-wobbly, timey-wimey stuff. They save the day again, and manage not to miss the school bus.
Cinderella: A long neglected girl who is friends with mice and gets treated like a slave attends a ball that she was never actually invited to thanks to a magical old woman. When she leaves said ball, she drops a piece of footwear.
Citizen Kane: A dying old man says something very strange on his deathbed, prompting someone to order someone else to interview everyone he ever met to try and find out what he meant.
Citizen X: The police force of a police state is unable to catch a real criminal until the state collapses.
City of Angels: Guy quits his job to be with his girlfriend. This proves to be short-lived.
City of God: Photographer gets stuck in a fight between a childhood friend and a bus inspector.
City Of Lost Children: An orphan and a circus strongman must team up to overcome an octopus and some quirky clones. They are both helped and hindered by fleas.
All but one of the actors are French. I will let you guess which One.
A Mad Scientist lives on an oil rig with a little person, some semi-retarded clones, and a Brain in a Jar. The scientist can't dream, so he kidnaps children to try to steal their dreams for himself. It was probably a mistake to kidnap Hellboy's little brother, though.
Clerks: A minimum-wage employee gets called into work on his day off, and gets to hang out with his best friend and play hockey.
Clerks II: Aging slackers experience life crisis when place of employment burns to ground.
Clueless: An overdressed girl goes shopping and gives her new friend a make-over. She's into a guy that is not into her. There's another guy who she cannot stand because he's a total geek, and he's always ragging on her, but he's way cuter than she first thought so it's cool. And it's based on a book.
Or: A teenager from the Valley tries to play matchmaker with the people in her life. In doing so, she learns more about herself and what is more important in life.
Coffee and Cigarettes: Two guys meet at a cafe. Two more people meet at a different cafe. And it goes on like this.
Cold Comfort Farm: A young woman is orphaned and goes to live with some relatives in the country.
Collateral: A killer and a taxi driver share a life changing trip around night-time LA, and discuss jazz.
Crank: A very angry man will die if he stops moving.
Better yet: A very angry white man with a shaved head will die if he stops beating up ethnic stereotypes.
Crank: High Voltage: A very angry man will die unless he electrocutes himself.
Crash (1995): A movie producer is drawn into the world of people who are sexually aroused by being in car crashes.
Crash (2004): A carjacking helps solve the problems of a lot of Los Angelenos.
Creepshow: A young boy reads a comic book in which an undead being searches for cake, Leslie Nielsen is a deranged millionaire (though not the Deranged Millionaire), Stephen King turns into a plant, Adrienne Barbeau gets eaten by a baboon, and cockroaches amass in an apartment.