Hey Arnold!
Hey Arnold! mistake picture

Tutoring Torvald / Gerald Comes Over - S1-E13

Continuity mistake: Arnold switches from his left hand to his right hand when taking the test.

AidanN

Ghost Bride/Gearold VS Jameo - S5-E25

Continuity mistake: In the scene where they are running from the second ghost bride, they go into a crypt and close the doors. One of the kids puts a shovel through the handles to keep it shut. In the next shot, it's gone. In the shot after that it's back.

Hey Arnold! mistake picture

Beaned / Old Iron Man - S5-E11

Continuity mistake: When Arnold reads to Helga, the book title says "GEO-" and "GRAPHY" (two words); the next day, it says "GEOGRAPHY" (one word).

AidanN
Hey Arnold! mistake picture

Ransom / Ms. Perfect - S2-E6

Continuity mistake: In "Miss Perfect", Helga, Rhonda, Sheena, Phoebe, and Nadine are cooking up ways to make Lila's (the new girl) life miserable. In one shot, Rhonda is wearing her new blue outfit. When the scene cuts to the boys and Lila, and then back to the five girls, Rhonda is wearing her standard red sweater and black pants. For the rest of that day, she is back in her new outfit.

The Aptitude Test / Oskar Gets a Job - S3-E9

Continuity mistake: In "Oscar Gets a Job", Oscar goes around asking people for money. When he talks to Ernie, you can see that there is a phone and a light to the right of the door. When Arnold confronts Oscar in the hall, you can see Ernie's room (7). The phone has disappeared.

Magic Show / 24 Hours to Live - S1-E18

Continuity mistake: The boarding house has a downstairs bathroom, but in "Gerald Comes Over", there's only one bathroom and it's upstairs.

AidanN

Save The Tree / New Teacher - S2-E1

Continuity mistake: In the beginning of 'Save The Tree', the tree ladder is a distance above the ground. Later on in the episode, when Arnold and his friends go to the tree house for the last time, the ladder is practically touching the ground.

Save The Tree / New Teacher - S2-E1

Continuity mistake: When Harold eats Mr. Simmons' tomato sandwich, there is a red stain from the tomato on Harold's desk. This stain disappears in later shots.

Weird Cousin / Baby Oskar - S4-E11

Continuity mistake: In "Baby Oskar" the apartment number on the door to Oskar and Suzie's apartment appears and disappears multiple times throughout the episode.

Bowling255 Premium member

Weird Cousin / Baby Oskar - S4-E11

Continuity mistake: In "Baby Oskar" when Suzie answers the phone there are 12 buttons on the phone, but when she is sitting on the bed there are 9 buttons.

Bowling255 Premium member

Arnold & Lila / Grand Prix - S3-E13

Continuity mistake: When Arnold, Sid, Eugene, and Stinky are arguing about the name of the go cart the name is already painted on. (00:17:20)

Bowling255 Premium member

Runaway Float / Partners - S2-E20

Continuity mistake: The kids' teacher in this episode is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member

Part-Time Friends / Bio Square - S2-E19

Continuity mistake: The kids' teacher in "Bio Square" is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member

Tour de Pond / Teachers Strike - S2-E18

Continuity mistake: The kids' teacher in "Teachers Strike" is Miss Slovak, who was their teacher in the first season, but in the first episode of this season they had a new teacher, Mr. Simmons.

Bowling255 Premium member

Save The Tree / New Teacher - S2-E1

Continuity mistake: In New Teacher when the principal is telling the class about their new teacher the students switch seats between shots.

Bowling255 Premium member
Hey Arnold! mistake picture

Olga Comes Home / Sally's Comet - S1-E15

Continuity mistake: In Sally's Comet when Gerald, Arnold, and Grandpa are in the traffic jam on the way to Hawk Mountain the position and type of cars around them change. When we first see the car there is a truck there and no room for them to turn around. When they do turn around then there is room and the truck is gone.

Bowling255 Premium member

Show generally

Continuity mistake: The pets OK sign on Arnold's house changes in different episodes.

Bowling255 Premium member

Tutoring Torvald / Gerald Comes Over - S1-E13

Continuity mistake: In Gerald Comes Over, Gerald says whenever he goes to Arnold's house he always goes straight to Arnold's room and has never seen all of Arnold's house. Also he seems never to have met any one else that lives there, but in previous episodes we have seen him in other parts of Arnold's house and met many of the people that live there.

Bowling255 Premium member

Arnold's Christmas - S1-E19

Continuity mistake: When Helga is talking about Arnold, the computer store she is in front of is on a corner (Phoebe is seen going around the corner) but a few shots later the store is no longer on a corner.

Bowling255 Premium member
Hey Arnold! mistake picture

The List/Haunted Train - S1-E8

Continuity mistake: At the beginning of The Haunted Train Grandpa's ice cream changes color from orange to white.

Bowling255 Premium member

Girl Trouble / School Dance - S3-E18

Continuity mistake: Besides the fact that when Helga is sharpening her pencil, the desk arrangement changes, one of the students visible when she looks at Arnold is...Helga.

More mistakes in Hey Arnold!

Helga's Makeover/The Old Building - S1-E4

Trivia: Helga walks by the "Law Office of Garcia, James A."; Tricia Garcia is the storyboard artist for this episode.

AidanN
More trivia for Hey Arnold!

Join the mailing list

Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.

Check out the mistake & trivia books, on Kindle and in paperback.