Factual error: In the scene where Xavier meets Raven, in 1944, one of the first shots shows a picture of Albert Einstein taken in 1947. (00:02:25)
Continuity mistake: The Nazi doctor shoves a coin towards the edge of his desk, telling young Erik to move it or he'd shoot his mother. In a shot from behind the desk, the coin is much closer to the edge than in other shots. (00:07:15)
Continuity mistake: After his mother is shot, Erik squashes the bell on the doctor's desk. Its shape is completely different in all subsequent shots. (00:07:50)
Continuity mistake: A sleepy Raven snuggles up to Charles and tells him to read something to her. He reads her his thesis. The way he holds his thesis and the way his left hand rests on the sofa behind her is different between shots. (00:13:40)
Continuity mistake: During the bar scene when the bartender is pouring beer for Eric, more than half of the glass is filled with foam (though it's in the background you can see it). But straightaway into the next shot when the bartender passes the beer to Eric, there is only a little amount of foam. (00:22:55)
Continuity mistake: Erik meets two Germans at the bar in Argentina, a pig farmer and a tailor. The amount of beer in the farmer's glass increases after Erik walks towards him. (00:23:20)
Continuity mistake: The bartender points a gun at Erik, and his finger is inside the trigger guard. When Erik pushes the trigger using his superpower, suddenly the trigger guard is free of the finger. This is intentional, intended to illustrate the fact the Erik pushes the trigger, rather than the bartender pulling it. (00:24:40)
Continuity mistake: Before Shaw takes the grenade from Hendry, the latter one has his finger in the pin, and has it half pulled out by then. Look closely at Hendry's hand: he is still holding the pin, while Shaw takes the rest of the grenade, but in the next shot, Shaw pulls it out again. (00:28:10)
Continuity mistake: When Xavier freezes Levene in the hallway he has a jet of water against his lips. In the next shot the jet of water is against his nose even though he didn't move. (00:30:45)
Continuity mistake: When the young mutants are showing each other what they can do, they all have a glass of cola, all four sitting on a corner of the table. But when Banshee wants to show what he can do, the glasses are instantly lined up. (00:51:00)
Other mistake: Sebastian Shaw finds the mutants at the CIA outpost, removes his helmet and approaches them to deliver his monologue. When the shot cuts to the group of mutants huddled together, Havok can be seen making a goofy face at someone off set before turning his head forward and getting back into character. (01:05:48)
Factual error: The Cuban Missile Crisis was in 1962. Rossiya Hotel (shown in the background of the Red Square overview) was built 1964-1967. (01:10:05)
Continuity mistake: When Banshee is diving into the water, his "wings" are still attached. The shot angle changes, and his wings have disappeared before hitting the water. (01:39:20)
Factual error: When the US government deliberates about blocking access to Cuba, they request the 7th fleet to be dispatched for the blockade. The 7th fleet is on the Pacific Ocean, not on the Atlantic. (01:47:00 - 01:48:00)
Factual error: Erik arrives in Argentina at a place called Villa Gesell, shown to be a town in middle of mountains. Villa Gesell is a beach town on the Atlantic Ocean coast, with no mountains.
Continuity mistake: When Mystique is on the exercise table and Erik lifts the bar off her, her right leg changes from stretched out to bent from the different camera shots.
Factual error: The establishing shot of Shaw's boat says they're in Miami. Yet in the scene, we see a very large suspension bridge in the background. The bridge is the St Simons Bridge leading from Brunswick to St. Simons, Georgia.
Continuity mistake: The position of the pig farmer's hand moves after Erik stabs it to the table towards the end of the scene.
Factual error: In the scene where they first pull up to the mutant research facility, they are in a 1972/3 Cadillac when the movie is set in 1962.
Continuity mistake: In the original X-Men film, Xavier mentions that he met Magneto when he was 17. In this film, he doesn't meet him until well into his 20's.
Chosen answer: He's not okay with it, but he knows that Erik's views appeal strongly to her. To all intents and purposes, she's already made her decision - to try to stop her would likely only lead to an argument, which is not how he'd want them to part. Plus there is the somewhat major side issue that Charles has just been shot, so it's not really the right time for a discussion on conflicting mutant philosophies.
Tailkinker ★