After Mr. Finchley pulls the paper out of the typewriter and reads its "GET OUT OF HERE FINCHLEY" message, the typewriter starts typing again. When it is shown, it suddenly has paper again.
Bartlett Finchley states that Thomas Jefferson wrote the Declaration of Independence in just a half day. In fact, the Declaration of Independence was actually written over the course of 17 days, and by 5 men: Thomas Jefferson (Virginia), John Adams (Massachusetts), Benjamin Franklin (Pennsylvania), Roger Sherman (Connecticut) and Robert Livingston (New York).
When Finchley is being chased by the car, there are two medium shots of his feet stopping in the dirt. Both times he stops by a cigarette butt, which was probably the mark that he was supposed to hit. Both shots also appear to be done in the same place and edited in two different places in the scene.
When the car pulls out after crashing into the boxes, it is clearly visible that there is a metal frame added to the front, presumably for protection and reinforcement for when it crashes through the fence.
When the electric razor is coming down the stairs, a string can be seen pulling it.
The car is now pursuing Finchley between two long hedge rows leading to the swimming pool. Two rows of tire tread marks are clearly visible in the grass leading up to the pool before the car makes its run at Finchley; indicated there was a practice run before the scene was shot.
When Finchley smashes the TV, the screen image stays visible for a short time after the screen is broken, revealing that the screen's image was superimposed.
When Finchley is being chased by his "driverless" car, you can see the driver crouching down at the wheel.
The arm of the stuntman in the 'driverless car' can be seen as it reverses out of the wall of boxes.
A large silhouette of crew and equipment is clearly visible on the side of the car as it backs out of the stacks of crash boxes.