Corrected entry: Castor Troy has the surgeon and other two witnesses killed in a fire to prevent anyone from knowing the identity between him and Archer had been switched. However, when the surgeon performed the operation, he had several assistants helping him, none of whom were killed in the fire. Which means other people knew about this.
Corrected entry: When Pollux admits to Castor (really Archer) the bomb is in the L.A. Convention Center, Castor gives Pollux a strange look and tells him he's so pathetic (as if he's turning on him). It seems those actions and that comment made Pollux immediately suspicious something was wrong. Castor should have just heard the location and said "Cool" or something like that, then changed the subject so nothing would seem wrong.
Corrected entry: When Dubov is in prison and is about to be electrocuted, his boots are taken off and he is left with inner boots. After the shooting and killing, he scrambles on the floor and is barefoot when he throws the cot against the security guards, then he climbs up the stairs and has the inner boots on again.
Corrected entry: When Archer is loaded into the ambulance beside Castor's body near the end of the film, he removes his wedding ring from Castor's hand, where it is obviously a firm neat fit. He puts it on his own finger and it is obviously very loose. Once you wear a correctly fitted wedding ring for several years (and no one wears a "loose" ring for any amount of time), your finger "adjusts" to it and it does not look loose (my own looks like my finger has developed a ring shaped depression in the skin). Unless he lost a decent amount of weight on his hands, that ring is a couple of sizes too big and should really have fitted him just as well, if not better, than it fitted Castor.
Corrected entry: So, they take Cage's face and put on Travolta. Now, they made a big deal about them not having the same blood type. Sure, the face is placed on a plastic mask, but it still needs blood supply. And if the blood types don't match, that's a no-go. Also, when Cage wakes up he smokes a cigarette. And we see the reflection of his face in a pair of glasses. He seems to have both eyelids and lips there, but shouldn't they be on Travolta? And finally.. They give Travolta liposuction to look like Cage who is a lot thinner. When they're turned back in the end, did they just inject all the body fat back in Travolta? Who'd be up for a reversed liposuction after having been skinny?
Corrected entry: When the faces are taken off they go straight into some kind of liquid. However the liquid does not go red in any way. Wouldn't the blood on the skin mix with the liquid?
Corrected entry: Near the beginning of the film, Castor is at the LA Convention Center setting the bomb. After the scene with the choir singing, there is a shot of the outside marquee that shows a choir convention running from the 18th - 21st. He then tells his boys to stay away from LA on the 18th because it's going to be a bit smoggy (the bomb). Later as Archer, after defusing the bomb, he is told that the targets for the bomb were some judges at a convention or something like that. The dates just don't add up - it was already the 18th when he initially set the bomb.
Corrected entry: Near the end, when Archer is just about to turn back, he asks the doctor not to put the scar back. It was a top secret mission. Troy says the files and everyone who knew about it were destroyed. There is no way they would have know how to put him back together, let alone put the scar back.
Corrected entry: The Director of the FBI dies, and his funeral is being attended by the new Acting Director of the FBI and probably other high-ranking officials. Still one of America's most wanted men, Castor Troy, just waltzes into this funeral, armed, and proceeds to start a firefight, with next to no security personnel to be seen. Unlikely.
Corrected entry: There is no way that the doctors would cut Archer's hair and apply cream and laser treatment to match Castor's during the operation. There is completely no point in them doing that and it is something that could have been done after the operation. The only possible reason they would have done it was to be able to work in the "The face itches" joke.
Corrected entry: In the scene close to the beginning, when the airplane is taken over by Castor Troy, he opens the door and throws the woman out of the plane. The door is on the left side of the plane. When the plane then crashes though the hangar, we see the left side of the plane, and there is no door on the plane.
Corrected entry: How it is that Castor Troy manages to come back to life again? He died from being blown into the wall by the jet engine, but somehow regains consciousness in the lab because his face was removed. Even if he did manage to 'wake up', why does he show no signs of being injured in any way? Surely a knock like that would break many bones, possibly even his back or neck.
Corrected entry: In the final shoot out scene in the church at the end of the movie, Travolta shoots at Cage with a semi-automatic hand gun. However, the shots fired were from a fully automatic firearm.