Other mistake: When the student body presidential candidates are giving their speeches, "Monarchs" is on the Gym floor, and not "Wolverines." This is because the school where it was filmed, Papillion-LaVista, their mascot is Monarchs.
Other mistake: Louella Parsons walks out of a screening of Citizen Kane before it ends, but later tells Hearst that Rosebud was Kane's sled. She shouldn't know that, because the identity of Rosebud is only revealed in the final scene of the movie. And if she disliked the movie enough to walk out on it, it's improbable she went to see it a second time.
Other mistake: At the very end, Alec Baldwin drives away and other cars follow him. Problem is: two cars after Alec's car, the green traffic light turns orange, then red, and the cars keep coming. In all, 6 cars go through the red light.
Other mistake: When Bill Gates arrives in Albuquerque, after Paul Allen says "It's not so bad when there's no wind" the subtitles say "oh yeah? what is that?" however the audio says "oh yeah? when is that?"