being an avid off-roader:
Johnny and June (story of Johnny Cash)
the scene where he is at the wooden house near the lake (playing around 1968 or so) … when the family shows up for Tgiving … the old pickup truck has a “General Tire AT (All-Terrain)” tire as spare in the bed …
those model was launched somewhere in the 1990ies 
any other stuff ony real freaks would detect?
IMDB has loads of this type of nitpicky data. The first thing I do after watching any movie is head to IMDB and read the cast list (there’s guaranteed to have been someone in the movie where I say “Where else have I seen that guy??”) the trivia, and the goofs - which include anachronisms like you mentioned, continuity errors (his raincoat moved from the left to the right) and a slew of other things.
During the motorcycle chase scene in Mission Impossible II there are magic tires on the bikes.
They’re knobbies/they’re not/they’re knobbies/they’re not. . .
My Triumph doesn’t have that button on the handlebars.
Carlito’s Way, in the strip club scene, Gail asks for a Diet Pepsi. This was in the mid to late 70’s. Didn’t exist.
Really nitpicky, but it always bugs me.
In Sleepy Hollow, Johnny Depp is seen playing with an old toy consisting of two different images on opposite sides of a disc that appear superimposed when it spins on a horizontal string; we see him face-on, and the image on the disc is right-side-up to us, then we see from his viewpoint (in fact, over his shoulder), the images are still right-side-up.
TYPE!! TYPE!! TYPE!!
You can spend $250 quingigillion on a movie these days, nail just about every period detail and still not get the type right.
I recently saw The Birds for the first time in years.
During the birthday party scene, Mitch and Melanie take a stroll up a hill. In the background we see the house, the dock and the bay. Is a bay still a bay without water? Because the dock is standing in a puddle. Earlier we saw Melanie cross the fully filled bay to deliver the Love Birds.
I’m not familiar with this movie, but… ummm… isn’t that what happens when the tide goes out?
I love movie goofs, and I’ve caught a few myself (though because of my aformentioned IMDB obsession, it’s hard to remember which I found and which I read) but some of them are so nitpicky, I have to wonder how anyone ever spots them. It’s mainly the continuity ones - people will point out a mug in the background that has rotated 180 degrees between one shot and the next. Do these people re-view movies for the sole purpose of picking up on continuity errors?
My favorite must be the one I saw in a Doper’s sig for Krakatoa, East of Java. Errors in Geography: Krakatoa is west of Java.
My raw guess is that in any movie or TV show that has a chessboard with pieces on it, the bottom right corner will be black. Way over half of them, anyway. And if we get a close-up of the pieces the Kings and Queens will be on wrong squares. And if we get a real close-up of the game, either impossible moves, illegal moves or stupid moves will be played. If one of the “players” says “checkmate” it won’t be, may not even be check.
If they’re going to be snooty enough to have a chess set on set to indicate this person is “intellectual” or (heaven forbid) “smart” you’d think the idiot could set up the pieces correctly. Sheeesh!
<somewhat off topic>
I seem to remember scrutinizng chess games that appeared in a couple of video games that I played - The Sims and Myst IV coming immediately to mind. Myst IV wasn’t so surprising because I pretty much expected them to get it right, but I was surprised in the Sims that the everything did seem to be accurate - the moves were valid, games ended at checkmate, etc. An astonishing level of detail, IMO. Of course, I’m sure there was only one game programmed into the thing and if I’d really, really paid attention I would have seen that each game was identical to the last, but still…
Does the tide go out in the middle of the day? The tide may have been out when they filmed that scene, but it didn’t coincide with the time of day of the scene.
Huh? This doesn’t make any sense. The time the tide is out changes on a daily basis–it’s something like 12 hours plus x minutes, so it might be low tide at noon on Monday and low tide at 12:40 the next day and so on.
Brokeback Mountain: Not actually a film flub, but a ‘revealing tidbit’ (which IMDB refuses to let me post, even though I’ve submitted it three times), but close-ups of BOTH Jake Gyllenhaal & Heath Ledger show that they have piercing-holes in their ears. Heath Ledger has at least three of them in one ear. I can’t imagine it was socially acceptable for rural midwestern guys (especially closeted guys who are afraid of being outed) to have ear piercings in the 1960s or 70s.
Put your mind at ease: Diet Pepsi was introduced in '64. Diet Coke didn’t exist.
I saw Flashdance in the theater when it came out. Her bike trips through town were a wonder to try to track. In one shot, she rides one of the inclines up to the top of Mt Washington, and then gets out several miles away in another part of the city.
Well then. The only diet Pepsi I knew of before the 80’s was the Pepsi Free brands. Looks like I was wrong.
In the first Mission Impossible, Tom Cruise is running all over Prague in the space of a few seconds. He’ll be in one location, run around a corner and be in another location that’s actually a mile away on the other side of the river. This occurs repeatedly over several minutes, and if you’re familiar with the area it’s laughably bad. It’s like if he was running past the Empire State Building, rounded the corner and into the Bronx Zoo, then out into Central Park, then crossed the street to the Statue of Liberty.
One that really irritates me is in A Civil Action where John Lithgow and John Travolta play a federal judge and lawyer whe have never heard of Rule 11 (Lithgow: "I had to look it up). There’s not a lawyer alive who hasn’t heard of Rule 11 sanctions, and the whole presentation of it as though it were some archaic loophole just advances the false notion that the law is filled with archaic loopholes and dirty tricks lawyers pop on one another.
Detroit Rock City
When the guys are in the “car fight” with the Guidos, the car has a magic drivers-side window. Up close, it’s open. Far away, it’s closed.
A couple that people had to point out for me:
In Star Trek IV: The Voyage Home, Kirk is part of a tour group looking at captive whales. Behind him is a short, round, middle-aged nun. In one shot, she’s suddenly tall, thin, and young. Then she goes back to her old self again.
In The Ten Commandments, during the exodus, there is an old blind man. With a wristwatch.