Deliberate mistake: Michael B. Jordan has a small indentation on his forehead, just above his right eyebrow. By virtue of the fact that he plays twins in this film, both characters have the exact same indentation.

Phaneron ★

Visible crew/equipment: Just as Eddie rides his motorcycle down from the lab's upper level, in the shot from behind him, set equipment and a few crew members are seen gathered at the top right of the screen, just before the shot cuts away. (00:44:40)

Super Grover ★

Revealing mistake: During Quidditch tryouts, when Ron blocks the Quaffle with his head in the closeup, Ron's body disappears at the bottom of the screen below the digital editing line. (Only visible on fullscreen DVD).

Super Grover ★

Other mistake: When they raise the temperature of the room with the facehuggers in, once the room is at body temperature, they open the door onto the much colder corridor. This would have immediately dropped the temp in the facehuggers' room.

Marcushasfun

Continuity mistake: When the house first becomes detaches from its foundation and becomes airborne, Russell is nowhere to be seen, although every angle of the house is shown, including underneath, the front porch and the back porch. He knocks on the door and tells Carl he chased a "snipe" under the porch - but he cannot be seen after liftoff and prior to knocking. The same thing happens near the end, when Dug claims to have hidden under the porch.

MovieFan612

Lloyd: What do you mean you don't bet? Wussy! Wussy!
Harry: I never have and I never will.
Lloyd: Yeah, right. I bet you twenty bucks I can get you gambling before the end of the day.
Harry: No way.
Lloyd: I give you three to one odds.
Harry: No.
Lloyd: Five to one?
Harry: No.
Lloyd Ten to one?
Harry: You're on.
[Lloyd and Harry both shake hands and smile.]
Lloyd: I'm gonna get you.
Harry: Nuh-uh.
Lloyd: I don't know how, but I'm gonna get you.
Harry: Nuh-uh.

Continuity mistake: When Ralph sticks Sour Bill to a candy tree, the branch is directly under Sour Bill, but when Vanellope has become a princess later on, the branch is now facing Sour Bill's right. (01:13:00 - 01:28:15)

Casual Person

Trivia: After the guests leave and Randy is alone on the couch watching Halloween, right as the ghost-face walks in, the Halloween theme begins. In Halloween the beginning of the theme means the shape is near.

brianjr0412

Other mistake: When the stormtroopers break into the control room, the stormtrooper on the right of the screen hits his head on the door frame. On the DVD release they've added a thump when he hits it. (01:18:55)

Question: Does anyone know who does the voice of Korben Dallas' mother?

Factual error: Carol Danvers' name appears on her dog tags as "Carol Danvers," but US military dog tags list the surname first, then given name. E.g. "Danvers, Carol."