All the President’s Men
Right?
Repo Man
And I recommend its counterbalance BLAST FROM THE PAST.
My own recommendations-
IT’S A WONDERFUL LIFE
HIGH NOON
THE FOUNTAINHEAD
NIGHT OF THE HUNTER
[QUOTE=The Scrivener]
Key omissions: Kansas City (MO), Memphis, Atlanta (something other than GWTW?), Colorado, Arizona, Maine, Key West, Alaska, Hawaii, the Rockies, and a good movie set around the Grand Canyon (Kasdan’s “Grand Canyon” doesn’t cut it).
[QUOTE]
Let me take a crack at some of these:
Arizona: Tombstone
Kansas City: Five and Ten
Maine: The Shawshank Redemption
Colorado: The Shining
Atlanta: Driving Miss Daisy
Alaska: The Gold Rush, or if you don’t want a silent, Limbo
Key West: Running Scared
Hawaii: Tora, Tora, Tora or Lilo and Stitch
Rockies: See Colorado
Grand Canyon: Thelma and Louise is the best I can come up with.
Any the Coen brothers pictures would be good:
Blood Simple: Texas
Raising Arizona: Trailer homes
Miller’s Crossing: Gangsters
Barton Fink: Hollywood
Hudsucker Proxy: Horatio Alger
Fargo: Hawaii
The Big Lebowski: Vietnam vets, Fading hippies
O Brother Where Art Thou: The Depression, folk music
Intolerable Cruelty: Er… George Clooney?
The Ladykillers: Pointless remakes
Okay, maybe stop after O Brother. (Haven’t seen The Man Who Wasn’t There)
Glory
The Patriot
Pearl Harbor
Tremors
Tombstone
Major League
Saving Private Ryan
Groundhog Day
Raiders of the Lost Ark
1776
Yankee Doodle Dandy
Gone With The Wind
Pulp Fiction
GoodFellas
Any Marx Brothers movies
Wait till you get to China. You can get all those movies there for a dollar. The pirate stores have a better selection than most blockbusters.
American Graffiti
The Rocketeer.
“I may not make an honest buck, but I’m an American, god dammit…”
I second Tremors but I have to add the 2nd and the 4th to that. I can live without the 3rd.
Dogma
Scrooged
The Wizard of Oz.
Blues Brothers
Fame
Some of these movies I have, some of them I have on my wish list, and some have made me gasp with joy “How could I have missed that one?!”. Admittedly, there are a few I’m going to skip forever. (Pearl Harbor, only mentioned by my American Way of War prof as “That damn movie”, for instance.)
I know that I can probably pick up more from a pirate shop in China, but I’m iffy on the practice, and they are going to be my “security blanket” from home.
Based on the OP, I’m interpreting the request as looking for movies by Americans about what they think the American experience is about.
And for that, I’m going to suggest Moscow on the Hudson.
Okay, it’s not a great movie. Robin Williams’s Russian accent is mediocre at best, and watching Maria Conchita Alonso trying to play Italian is pretty painful.
But think about the story: A Russian circus performer defects in New York City, in Bloomingdale’s no less. (The movie was made in the mid-80s.) The Bloomie’s security guard offers to take the defector into his own house until he has a place to stay. (Notably, this all happens on television.) The Russian defector comes face to face with the famed American excess and has to learn to cope (he collapses in the grocery store on being confronted with the variety of brands of coffee). He moves through a series of jobs, working variously as a dishwasher, a limo driver, and so on. Virtually everybody he runs into is from someplace else, such as his immigration attorney (from Cuba) and the government worker his attorney argues with (she has a Jamaican accent). America is portrayed as being big, boisterous, confusing, and occasionally dangerous, but essentially good at heart. And at the end, we get an amazingly schlocky scene where a bunch of immigrants quote the Constitution (or is it the Declaration of Independence?) at one another.
Like I said, not a particularly good movie, but I can’t think of a better example of a feel-good film that captures exactly what America thinks of itself and how it believes it would (or should) be viewed by a new arrival to its shores. “We may not be perfect,” says the movie, “but we beat the hell out of everywhere else.”
That’s a quintessentially American point of view, and Moscow on the Hudson conveys it better, I think, than any other movie in memory.
Howzabout two Presidential movies:
Dick
Dave
The Big Lebowski
The Searchers
Brother From Another Planet
Dawn of the Dead (70’s version)
Heavy Metal Parking Lot
Invasion of the Body Snatchers (50’s version)
Pee-Wee’s Big Adventure
Scarface
Repoman
Roger & Me
But then again, I’m not American 
Airplane
Animal House
Blues Brothers
Caddyshack
Happy Gilmore
Miracle - (About as American as you can get…)
Oh, and just about any John Wayne movie …
Not to get nitpicky (which means I’m about to get nitpicky), but the vast majority of Fargo takes place in Brainerd, MN and the Twin Cities. The only scene to actually take place in Fargo, ND is the initial meeting between Jerry Lundegaard and the kidnappers. After the first five or so minutes, the rest takes place in Minnesota.