The Color Purple. Hey, waiddaminnit! All these people are brown!
Good one. But then where does that leave Rebecca?
Star Trek: The Undiscovered Country, the Star Trek movie which follows Star Trek IV: The Voyage Home, is inexplicably titled Star Trek VI.
Twelve O’Clock High had no discernible connection to the noon hour.
None of the Star Wars movies had even a single scene on or inside a star.
Where did they get the title for Blade Runner?! Nobody in the story even uses a knife!
Fargo.
Gunderson hires the hitmen in Fargo (the scene for which was actually filmed in Grand Forks, ND, about 70 miles to the north).
Most of the action takes place in the Twin Cities and near Brainerd, MN.
I don’t think people would have been too interested in a movie called Brainerd.
The accents were pretty crappy too.
The Ray Dennis Steckler masterpiece Rat Pfink a Boo Boo.
From the trivia entry:
I don’t know…I’d have watched it just to see if they got good footage of the Bunyan statue…
I’m surprised nobody’s mentioned Manos: The Hands of Fate, which basically translates to Hands: The Hands of Fate.
How 'bout the Death Stars?
Sunnybrook Farm?
Just so I contribute something to this thread other than nerd trivia, I would like to commend to your attention The Jazz Singer. Al Jolson couldn’t sing jazz to save his ass, and don’t even bring up Neil Diamond.
I am on the hell express now… 
Brazil
It was from an unrelated story. They just liked the sound of it.
Arguably, the use of the word “adventure” in The Poseidon Adventure is misleading. “The Poseidon Ordeal” would have been more accurate.
Well, at least they sang the song.
Watership Down.
Rabbits, yes. Ship, no.
The Longest Day. The action doesn’t take place on the summer solstice.
Attack of the Clones. I don’t know if we even get to see their “attack”, but the attack itself certainly wasn’t the major plot point in the movie.
The Post-man. I thought it was going to be a Devo documentary…oh, sorry. Nevermind.
The Breakfast Club. Never saw anyone eating breakfast in that movie. Lunch, sure (if you like Pixie Stick powder on your sandwich), but it ain’t breakfast.