In the lunch counter scene, Shelley is shown buying an RC soda, and carrying it to the table. A following cut shows her drinking from a Diet Rite can.
During the "turning the tables" scene, as Clifford is telling Moody his services will no longer be needed, Carson is shown standing behind Ricky. In the next cut, he is shown moving from behind the crowd to deliver his line to Moody, then moving behind Ricky.
As Clifford searches for his homeroom on the first day of school, he stops a teacher and asks her where room 235 is. Later, as Moody enters the classroom, you can see the number on the door's window is 325.
In the lunch counter scene, Shelley is shown eating a sandwich while making a purchase. A following cut shows her buying the sandwich.
Ketchup/Mustard stains are inconsistent from the restaurant to the junkyard. (Dubrow's sunglasses and hair).
When Moody pushes Ricky's motorcycle into the pond, it sinks quickly. Later when Ricky retrieves the motorcycle he(and the bike!) are completely dry as he would have had to enter the pond and submerge significantly to get to it.
In the final fight between Linderman(Adam Baldwin) and Mike(Hank Salas)...when the two go over a picnic table and land on the ground, Hank Salas hits his head visibly on the ground and says the 'sh** ' word quite audibly.
At c. 35 minutes the string quintet is clearly not playing the Mozart heard in the soundtrack. In any case, the piece (Mozart's Eine Kleine Nachtmusik) is written for four string parts and not five.