Continuité: When Max meets Blume, Dr. Guggenheim's hand holding his pipe.
Erreurs faites par les personnages (éventuellement des erreurs délibérées par les cinéastes): In the first close-up shot, the box with the "Perfect Attendance" and "Punctuality Award" pins appear from left to right. But when Max reads out the names of the pins (in the same order as above), he points at them from right to left.
Continuité: In the elevator, Max and Mr. Blume swap their position.
Continuité: The Swiss Army Knife Dirk gives Max says "Rushmore Yankee 1985-1997". Since Max is 15, this would mean he has gone to Rushmore since age three. But we know from his first talk with Dr. Guggenheim that he has only gone to Rushmore since second grade.
Equipe ou équipement visible: When Max and Mr. Blume are walking outside Max's fathers barbershop, crewmembers can be seen in store windows.
Continuité: In the final party, Mr. Littlejeans is in the background of two consecutive conversations that ostensibly take place in different parts of the party hall - the conversation between Max's Dad and his Hamilton teacher, and between Ms. Blume and Margaret Yang.
Continuité: The movie continually updates what time of year we're in. But in the portion of the year labeled "September", the leaves on the trees are all red and gold and falling off. In "October", however, the trees are completely covered with green leaves.
Révélant des erreurs: At one point a reporter is interviewing Max Fischer with a tape recorder. As he's holding it up to Max to speak into, it is very obvious that the tape recorder is not moving, the wheels inside are at a standstill.
Continuité: Amount of lemonade in the jug after Max refills Rosemary's glass.
Continuité: When Ms. Cross is grading papers in the library, before Max comes to refill her lemonade you see her grade a paper with a yellow paper under it, and her smiley face stamp to the right of her hand. In the next shot when Max refills her Lemonade there is no yellow paper under the one she is grading, and her smiley face stamp is far off to her left.
Continuité: When Rosemary Cross was talking with Max in her classroom after leaving her job, the students' artwork she previously had taken down just seconds before in the same scene reappears.
Continuité: When Margaret Yang is flying the remote control airplane, it is a cloudy day. When the plane lands, its shadow is visible indicating the sun is out.
Erreurs factuelles: Ms. Cross says, "These were just born", referring to a tank of full-grown neon tetras.
Equipe ou équipement visible: When Max goes to meet Blume's wife, you can see the camera and crew reflected in the building behind them.
Continuité: When Mr. Blume is on the diving board there is a shot looking down on him and you can see that his cigarette is very close to burned up; but in the next shot he has almost half a cigarette left.
Révélant des erreurs: When one the Blume twins get into their father's Bentley after school, one of them turns up the air conditioning. The automatic heater controls shown are not the same as those in the Bentley, which has manual controls.
Continuité: When Max is riding the replacement bicycle to Blume's work to sabotage his car, we see from the side that the rack on the back of the bike has nothing in it; when he gets to the gate and we follow him in, there is now a small pack attached to the rack (from which he pulls his tools in the next scene under the car).
Continuité: In the elevator scene at the hospital with Max and Herman, Herman lights a second cigarette while still finishing the first. In the shots that follow the old (almost finished) and new cigarette (full) switch locations and then switch back.
Continuité: When Dirk confronts Herman by standing in front of his car, we can see Herman's son in the front seat with his head in his hand, gesturing impatiently. Then he is suddenly sitting upright with his hand on the side visor.
Erreurs factuelles: In the end credits musical listings, the name Jeremy (of Chad and Jeremy, who contributed ‘A Summer Song’ to the soundtrack) is misspelled as Jeremey.
Continuité: When Max is being interviewed at baseball field the interviewer's tape recording is not recording (tape isn't spinning).
Anachronismes: When Max is shown in the Model UN delegation as "Russia", he has an old, red Soviet Union flag on his desk (note the hammer and sickle), although the USSR fell in 1991. A closeup of Max's Swiss Army knife reveals that the story takes place in 1997, by which time the current white, blue, and red Russian flag was adopted.