When the car overheats, the brush in the front is taken out of the hood. When the car is stuck in the sand, it is still in the hood.
At the camp fire in the desert, Jim put his .45 caliber pistol on the rock with the barrel pointing away from the fire, but subsequent views of the gun show the barrel point toward the camp fire.
When Mrs. Cummings leaves the roadside cafe and walks by the table the seats at the counter are empty behind Jim and Susan.The two police officers are sitting in the seats in the shots before and after she walks out.
The model's dress changes 17 times from black to white to black starting from when they're taken to the car to escape to the end of the film.
When the paper boy stops at the road block in his Ford truck, several large studio lights and a large group of movie crew members can be seen in the reflection on the side of the truck.