Malcolm drives into Mrs. Griffen's driveway. The other boys abandon the car. In different shots, the rear passenger door behind Malcolm is both open and closed.
When Mrs. Griffin is driving Malcolm back to her house the cars and street change between the scenes in the rear windshield.
The crayons on the bed change position after Reese walks in and offers Dewey a new back pack..
Malcolm drives into Mrs. Griffen's driveway. The hood of the car is in shadow then full sunshine then shadow again dependent upon camera used.
When Reese sees Dewie with a purse, Reese advises him against it. When viewed from the front, Dewie's collar is under the straps of the purse. From behind, the collar is over the straps.
In the cold open the shadows of the chess pieces fall in three different directions dependent upon camera.