Character mistake: When Lucian tells Vlad that the creature he encountered is a vampire, Lucian says that "Pi" is Greek for "to drink". "Pi" is actually the Albanian word for drink, not Greek.
Character mistake: On the way approaching town the camera pans to a woman's hanged body with a sign written in German around her neck. One of the crew asked Wardaddy what it said, to which he answered something like "It reads 'I am a coward who refused to fight for the German people'." That sign actually translates to "I wanted my children not to go fight" or Anglicized for better effect, "I refused to let my children to go to war." Interestingly, once into town, there appears the corpse of a hanged man with a sign written in German that does translate to what Wardaddy said of the first sign. (00:43:00)
Character mistake: The doctor diagnosing Will's illness tells Evelyn and Max that it's caused by "an isotope called polonium." Polonium is a chemical element, not an isotope. The word "isotope" refers to a form of an element (such as carbon-12 or carbon-14) not the element itself. It does not mean "radioactive substance", because many isotopes are stable. A doctor would know this. (00:17:00)
Character mistake: Joan Clarke pronounces the name of the mathematician Euler to rhyme with "ruler", when in fact it is pronounced "oiler."
Character mistake: In the bathroom scene with the fat man tied up, Kevin answers his phone upside down.
Character mistake: When Eli discusses with Sonny about draft picking she mentions that Tom Brady was picked by the #198 place in the draft but actually he picked by the #199 place in the NFL draft. (01:10:00 - 01:11:00)
Character mistake: Dino puts up his "Elemento" for whoever takes down Marshall. Monarch then says there are only three of those cars (a Lamborghini Sesto Elemento) ever made. This is not true. Lamborghini didn't make three, they made twenty.
Character mistake: Nikki lost her insulin kit and needs insulin. Her mother suggests getting her a fruit juice, something sweet. Fruit juice contains a large amount of sugar which raises blood sugar levels very quickly. Therefore, people with diabetes are usually best to avoid drinking fruit juice. Her suggestion is absurd.
Character mistake: When the supply convoy is ambushed, Soto is instructed to get on the .50 caliber. However, the weapon on the gun ring is a .30 caliber M1919 machine gun, not a "Ma Deuce" .50 caliber.
Character mistake: At the hospital, Alice's husband says, "Here we are, in a major hospital, and they only have one elevator." In fact, there are two elevators, right beside each other. He actually looks at the other one before making the comment.
Suggested correction: He meant one elevator bank that actually worked. During the time they waited, none came.
Exactly. He says "they only have one elevator running", which is different than saying they only had one elevator.
Character mistake: Mitch states that he is Pisces then goes on to state that his birthday is 25th of March. The Pisces period goes from 19th February to 20th of March. Mitch would actually be Aries. (00:35:00 - 00:37:00)
Character mistake: When Jesperson imagines himself as a Mountie his uniform is completely wrong and is not even the right colour. As it was his ambition to join the force and he has photos of RCMP officers in his cab, it seems unlikely that he would imagine himself in a completely incorrect uniform.
Suggested correction: It's not a character mistake, for the reasons stated; it's a clear factual error from the filmmakers.
It's a character mistake since it's his imagination and, as you stated, it's not something the character would get wrong.
Character mistake: Near the start, there's a misspelling of the word "Victim" in the newspaper heading "Police expect Beadie to mail latest victim's ID." Read by the man at the bar who is smoking a cigarette. (00:02:14)
Character mistake: When asked if he had a job, Mason Sr proudly responded he just happened to have passed his second actuarial exam and that's what Mason could tell his mother. Mason Sr didn't seem to realise the first two actuarial exams are the easiest to pass, many aspiring actuaries have completed the first two exams by the time they earn Bachelor degrees, and will study for years for the remaining exams while employed full time. He wasn't anywhere near being an actuarialist and wasn't employed - yet bragged. (00:39:44)
Character mistake: At the end of the movie, when Jaggu is listening to the sounds recorded by PK, the audio contains the question which she asked, "Tumhare planet pe sab aise hi hote, bade kan wale?" but does not contain the answer which PK gave, even though he was sitting right there. This seems to suggest that PK did not exist in the real world.