After Charlie's thumb has been shot off he dives into the water to rescue Irene. When he reaches out for her with his left hand the thumb is back in place.
The Ford LTD 2-door belonging to the "Barber Shop Car Owner" is a 1979 to 1982 model when it's parked out on the street. However, it changes to a 1983-1987 model when Hank crashes it through the window; the grille changes completely.
Charlie's neighbor Ed allows his dog to crap on Charlie's lawn. In wide shots he is holding the leash roll in his right, in close-up in his left hand.
The train's locomotive changes from an F40PH to a P42 Genesis in the train scene (the one they sleep in).
When the police report that Charlie has been spotted at the health food restaurant, Boshane's bandage moves from his left cheek to his right and then back again.
Charlie's diagnosis of "advanced delusionary schizophrenia with involuntary narcissistic rage" is incorrect. Schizophrenia causes delusions and hallucinations with paranoia. Many people used to believe that schizophrenia resulted in multiple personalities, but this is not the case. He should have been diagnosed with dissociative identity disorder (also known as multiple personality disorder). Further, there is no medication used to treat multiple personalities, although some medications can be used for other symptoms (such as anxiety and depression) that accompany the condition. Treatment of DID involves years of psychotherapy - the disorder cannot be cured by taking a pill as portrayed in the film.
Much of this movie was filmed in the Burlington and Middlebury areas in Vermont. Therefore, there are a lot of inconsistencies with vehicle plates and identifying characteristics of things like particular state trooper uniforms/cars/etc. And yes, the abandoned bridge/railroad trestle/etc. is actually the pedestrian bridge over the Otter Creek in downtown Middlebury.
In the flashback scene in 1982 when Charlie and Layla are on the picnic blanket, they're drinking Budweisers out of late 1990's bottles that came in a late 1990's six-pack.
The police are informed that Charlie and Irene are 100 miles away. As they board a police helicopter one of the cops tells them they can be there in 15 minutes tops. This means that the helicopter will be traveling at 400 mph. Police helicopters max out at about 130 mph.
One only gets a "milk mustache" from drinking out of a broad-rimmed glass or cup (as opposed to sipping with closed lips from a narrow-bodied straw or bottle), so Charlie/Hank would not have gotten milk on his upper lip merely from his "localized suckling" at Ms. Buxom's titty.
The Captain explains to Charlie Sons about him shooting a cow & how it was lucky to be alive. 1. How did he even know it was Charlie that shot the cow when it could've been anyone? 2. Even if the police DID check for DNA on the cow why would they bother in the first place given that ANYONE Police or not could've passed & shot the cow? They would've simply just got the cow disposed of & wouldn't have thought about suspecting anything given the randomness of the scenario.
Just because it was not shown or explained, a witness could have seen a Rhode Island State Trooper Harley Davidson motorcycle with a passenger riding away from the location of the cow in the road. The local police likely contacted the RI State Police who would not have had other motor officers with passengers.
When Whitey reads the note left by Irene and Charlie on the car Scooter is reflected on the car waiting and then moving onto the set.
When Charlie gets his thumb shot at the end of the film, he shouts out and raises the bloody thumb. In one shot it is obvious that he has folded the thumb.
When Hank crashes the car into the barber shop, the 'barber' is an obviously younger stuntman at the moment of impact.
New York State Troopers uniforms are not blue and do not wear badges, as seen in the movie. They wear gray uniforms without a badge.
When Charlie (as Hank) opens the car door after crashing the car through the barber shop window, the wall of the set wobbles as the car door nudges it.
After the encounter with Chrysler Convertible Dude, the road along which Charlie, Irene, and Whitey are travelling is just an ordinary two-lane highway, so there is no way that C.C. Dude could have been tootling alongside them for the flaming hat to be tossed over into his passenger's seat.
The limo driver references the film Free Willy (1993) when he is leaving with Charlie's wife. This scene occurs in the 1980s, but Free Willy wasn't released until 1993.
The ketchup bottle sitting on the grill (at the kid's birthday pool party) is a squeezable plastic 'flip-top' ketchup dispenser with a distinctly modern label. This particular ketchup bottle did not exist in the mid-1980s.
On the beach in the 1982 prologue, the two are drinking Budweiser beer out of late 1990's bottles that came out of a late 1990's six pack.
A scene showing Charlie return home to his teen aged boys attempting to build a small airplane, shows, in the background, a mid 1990s Oldsmobile Achieva driving by but the scene takes place in the late '80s.
Reflected in the side of the SWAT van that pulls out of the motel parking lot.
The camera/crew occasionally reflected in Charlie's motorcycle, especially during the introduction.
When Charlie climbs back into the red car you can see the reflection of the camera on the hood. You can also see the shadow of the 4x4 used to tow the car with the equipment loaded in the back.
Before they make the first train stop, the train conductor announces they will be stopping at Providence, Rhode Island. But, the scene is filmed in Burlington, Vermont at One Main Street's train station. You can see a sign that says "Burlington" along with the distinctive addresses seen and license plates.
Scenes of Charlie/Hank's house were shot in the Bonnet Shores neighborhood, in the town of Narragansett. At one point, Charlie/Hank leaves his house for a drive (I think to work). The very next shot shows him driving west over the Newport Bridge, which is the incorrect direction if he's leaving from Narragansett.
When Charlie opens the door of the car for Irene near the end the boom mic (or a support cable) is reflected in the wing mirror.
Shadow on ground when entering Ben & Jerry's.
When Irene and Charlie are waiting outside for a train after Charlie calls his sons, the boom mic is reflected in Irene's sunglasses when they are sat on the bench.
Shonte Jr. complains about Pluto being a planet, saying that no planet has an elliptical orbit. All of the planets have elliptical orbits; Pluto's orbit is only more eccentric, and isn't in the same plane as the rest of the Solar System.
When Charlie and Irene leave for New York, the Colonel and his assistant are talking about him being a liability. The assistant says "But Captain, Police Work is Charlie's life...", incorrectly addressing the Colonel as a Captain.