Ok, go to the part of the movie where Dr. Sattler, Dr. Malcom and Muldoon are being chased by the T-Rex in a gas powered jeep. After the camera shows the driver side, rear view mirror saying "objects in mirror are closer than they appear", and the jeep goes under the log, smashing off the top, right before it goes off screen you can notice(if you look carefully enough)that the passenger side rear view mirror is still intact(still there). In the very next view, you see the passenger side again and the mirror isn't there!