Source Code: Man posing as history teacher meets a woman on a train.
Carrie–Misadventures at a senior prom
Misery–A famous writer drives drunk in a snowstorm and crashes his car. His life is saved by a nurse, his #1 fan.
Stand By Me-A group of children take a late summer’s hike.
The Shawshank Redemption–Racial issues set in a northern prison
The Green Mile–Racial issues set in a southern prison.
Die Hard: a police officer tries to reconcile with his estranged wife.
Commando: a man fights to regain custody of his daughter.
This is a summary I saw in TV Guide long ago. The clipping is around here somewhere.
The Wizard of Oz
A young girl is transported to a new land where she kills the first person she meets, then teams up with three strangers and goes off to kill again.
Starwars：Due to the voices in his head, a young man helps wanted terrorists kill hundreds of thousands in a bid to seduce his sister.
**20,000 Leagues Under The Sea **(Disney version): Guitar-playing harpooner and friends go on a south sea cruise.
There Will Be Blood: The writer/director who lampooned the adult film industry in Boogie Nights turns his camera on an up and coming oil man.
White Bubble Butt Sluts 2: An in-depth, intimate look at interracial relationships.
In a small town, a teenager’s family is devastated by his fathers psychotic boss. He regularly physically abuses his father, leading to his nervous breakdown, and has raped his mother, leading to her alcohol dependency. Desperate to break free, he befriends a crazy guy in the area, who was once a hot shot scientist, but now has mental issues of his own. His friend now makes money by using his scientific knowledge to manufacture nuclear and chemical weapons for a terrorist cell operating within US borders.
One day, the teenager gets a mysterious call, summoning him to a deserted parking lot in the middle of the night. He gets there to discover his friend unloading something from the back of a trailer. When he looks under the tarpaulin, he discovers it is…a Delorean
Why not make a game out of it? Can you guess what movies I am synopsizing below?
“A novice government worker is frustrated in a project, so she seeks advice from an unorthodox professional.”
Silence of the Lambs
“A father & son hijack an old jalopy and drive it back to its’ owners - whom they then infect with a malware virus.”
Independence Day
“A bunch of dumb, blue-collar riggers encounter unexpected delays while trying to deliver a large cargo payload.”
Alien
“A group of colorful men see their carefully laid plans for the day go awry.”
Reservoir Dogs
“A character study of four individuals grappling with a fractious, divided national crisis - all while on an extended shopping trip.”
Dawn of the Dead
“A nun goes to Death Row.”
Dead Man Walking
That also works for Armageddon, but I kinda thought the point was to describe the movie in an especially banal and uninspiring manner, and slathering on the adjectives (plus using phrases like “malware virus”) undermines this effort.
A comedian I heard on the radio recently talked about one of these. His local TV listings summarized Deliverance as, “Four Georgia businessmen take bad canoe trip.” He said, “I think there’s a little more to it than that, I seem to recall anal rape and some archery.”
The Exorcist - “Disillusioned priest finds his faith tested.”
Robocop - “Crime concerns many in future Detroit.”
Real-estate investor clashes with alien invader!
Deliverance: Four men bond on a canoe trip down a river.
This works great with M. Night Shyamalan movies!
Unbreakable: A man in a wheelchair teaches another man the value of being healthy
Signs: A priest rediscovers his faith while bonding with his children and brother against foreigners
The Village: An attempted murder spurs girl to seek help from woodland critters
Lady in the Water: Apartment residents uncannily live out events of a storybook
The Last Airbender: A airheaded boy travels the world dispensing wisdom and looking for his past
Devil: Strangers bond while stuck in an elevator
City slickers on vacation get taken by the locals.
Or the even more vague: “Male Bonding on a wilderness canoe trip”
How about a completely misleading movie trailer? 
:dubious: That is pretty much the film. Of course, my description of The Italian was also pretty honest–it’s how that happens that might surprise you.
Even trying to mock that film shows how stupid the plot was! 
Psycho: Taxidermist has a wild night with a girl on the lam.