Michael Ironside recalled his experiences on this movie: "Yeah, listen, I hated that script. We all did. Me, Sean, Chris, we all were in it for the money on this one. I mean, it read as if it had been written by a thirteen-year-old boy. But I'd never played a barbarian swordsman before, and this was my first big evil mastermind-type. I figured if I was going to do this stupid movie, I might as well have fun, and go as far over the top as I possibly could. All that eye-rolling and foaming at the mouth was me deciding that if I was going to be in a piece of shit, like that movie, I was going to be the most memorable fucking thing in it, and I think I succeeded."

John C. McGinley made his character's voice as deep as possible in an effort to imitate Orson Welles. He has since admitted that it was a bad idea.

Director Russell Mulcahy disliked the theatrical cut so much that he left the premiere after only fifteen minutes.

Christopher Lambert and Michael Ironside did most of their own stunts.

Grossly contradicts Highlander (1986), its prequel.

Completed production exactly four years later to the day of the first Highlander (1986).

Christopher Lambert normally wears glasses, as his eyesight is very poor. During one of the sword fights, Lambert (sans glasses) nearly severed Michael Ironside's right thumb.

Director Russell Mulcahy disliked the theatrical cut so much, he left the premiere after only 15 minutes.

In the renegade version, a documentary following the film has the filmmakers explain why the original theatrical release contradicted the first film. According to them, the inflation in Argentina had risen so high during filming that the film's insurance company started to take creative control, and made a film they thought would make the most money.

Sean Connery received $3.5 million for nine days of filming.

In unused scenes, it is explained that the Kurgan from the first film was also a resident of the dreaded planet Zeist, hired by General Katana (Michael Ironside) to kill Connor MacLeod ('Lambert, Christopher'). The final battle between MacLeod and the Kurgan from the 1986 film is shown on a large screen to Zeist bettors, and when the Kurgan fails, Katana sends down the two assassins featured in the final cut of the film to take out MacLeod.

The final fight scene between MacLeod and Katana is composed of two seperate battles. They are shown correctly in the renegade version.

All the subsequent Highlander productions ignore Highlander II, as if it never happened.

During the course of filming Christopher Lambert cut his finger to the bone in the first sword fighting scene and Michael Ironside dislodged his jaw in the dome fight.

Both Christopher Lambert and Michael Ironside did most of their stunts.

Russell Mulcahy was so frustrated at being locked out of production that he tried to have his credit changed to "Alan Smithee". However, a section of his contract forbade him from publicly attacking the film before it was released; the producers informed him that if he had his credit changed they would consider it an attack and launch a lawsuit against him.

'Christopher Lambert' was so disgusted with the re-written script that he wanted to drop out of production, but due to contractual obligation he was forced to finish the film.

Originally, Ramirez was not supposed to be in the film. However, 'Christopher Lambert' had become such good friends with Sean Connery during the making of the original, that he threatened to back out of this film if Connery's character was not added to the sequel.

Virginia Madsen had auditioned for Heather in the original Highlander (1986).

Shortly after production on this film began, Back to the Future Part II (1989) was released. The design team then went back to the drawing board to make the flying sleds used by the Zeist assassins in this film look less like the Spielberg/Zemeckis "Hoverboards".

John C. McGinley made his character's voice as deep as possible in an effort to imitate Orson Welles. He has since admitted that it was a bad idea.

Products from fast food chain Wendy's are often seen as the characters' choice of meals.

Continuity

When Juan S?nchez Villa-Lobos Ram?rez was killed in the prison, he had the Samurai sword with him, and Connor MacLeod ran out of the prison with his other sword. In the final fight, MacLeod has the Samurai again.

In Highlander Ramirez says he is the chief metallurgist to King Charles V of Spain, in Highlander: The Quickening, when they are about to drive inside the prison, he presents himself as Ramirez the chief metallurgist to King Phillip II of Spain, this is impossible as Ramirez was beheaded by the Kurgan in 1542 and Phillip II of Spain only became king in 1556.

When Katana is "beamed" to Earth, he is not wearing gloves. When he arrives on Earth, he is wearing them.

During the raid on the shield generator near the start of the film, we see 4 characters slide across the zip-wires but when they enter the interior there are 5 of them. When they leave, the guards shoot 2 but then 4 are shown running across a walkway. The next shot shows a monitor with 5 people running down a corridor.

Katana brushes his coat against the energy shield and loses a piece. The jacket is intact for the rest of the scene.



Factual errors

The coordinates 33? 26' N, 60? 42' W are a point in the middle of Atlantic Ocean, east of Bermuda.

Either the future clothes are fire resistant, or become immortal too after the quickening. MacLeod?s clothes are fully intact when he steps out of the fire from the tank truck explosion.

The playbill at the beginning of the movie misspells the title of Wagner's opera "G?tterd?mmerung" as "Gotterdammerung" - a mistake a real opera house would be very unlikely to make.



Incorrectly regarded as goofs

Katana, who has never visited Earth, knows about league draft rules and the Wizard of Oz. He monitors MacLeod through a screen, and he could have learned about them through it.

Ram?rez admires himself in a wall of monitors just before he is fitted for his new suit. A pedestrian walks between Ram?rez and the camera, but doesn't show up on the monitors. This is because the camera is zoomed into Ramirez' position on the sidewalk and it does so from a high angle. The pedestrian complimenting him on his clothes is standing close to the store's window and is simply out of the shot because of the angle.

Ramirez and MacLeod enter the prison with a car. The guards shoot the car with machine guns from all sides. MacLeod's friend Louise Marcus, in the trunk of the car, survives unhurt. That is because they were shooting into the passenger compartment, not the trunk, which had no bullet holes, as can be seen at 01:24:22.

In the Renegade version, the closing credits list Bruno Curichelli as "Zeist Chief Justice" even though that version eliminated the Planet Zeist plot. There are at least three versions. There is no canon.

When Connor and Katana fight around the energy shield, they destroy several railings. After Katana burns his hand, the railings are intact again. Not so. The damage is still seen at 01:41:47, as they are ready to destroy the shield and again at 01:42:33 after it's destroyed.



Revealing mistakes

When the subway car is speeding out of control, a quick shot shows an obvious dummy blowing around.

When Katana throws Blake out of a window, the figure that hits the ground is a very, very obvious dummy.



Miscellaneous

The Shield is apparently supposed to give the impression of night throughout the Earth 24/7, but when Ramirez enters the tailor shop in Scotland, daylight can clearly be seen shining from the windows. Incorrect impression. Without daylight, everything dies.

In the theatrical film, it's established that the citizens of Zeist are not immortal on Zeist, but are once they get to Earth. In The Renegade and Director's cuts, all references to Zeist removed, instead having them sent from the distant past and explaining that they're already immortal in their own time instead of becoming immortal. Despite this, the extended cuts retain a scene where Connor is explaining his past and confirms that he wasn't immortal where he came from. There's no canon between the various versions.



Crew or equipment visible

In the fight scenes in the beginning of the movie, the lines suspending the actors in the air are clearly visible.

When MacLeod fights villains after leaving the bar, support wires are visibly attached to one villain's flying device.



Errors in geography

Ram?rez walks through modern-day Scotland, yet no one he speaks with is Scottish. The confused actor uses a Cockney accent, the man on the street complimenting Ram?rez's clothes has an American accent, and the tailor has an upper-class English accent. In the latest census only 62% of people said their identity was Scottish. So, one out of every three people without Scottish accents.



Plot holes

In the Renegade Cut MacCleod and Louise climb a ladder inside a mountain and get above the shield, yet planes routinely fly in this same world. Commercial flights routinely fly several thousand feet above the peak of any mountain in North America.