Continuity mistake: Tea Leoni's bruise on her cheek changes throughout the movie, once looking like a scratch, once looking like a bruise, etc.
Continuity mistake: After Dr. Alan Grant gets done talking with Ellie, he backs up in his car. As he pulls away, we can see that the interior dome/map light is blaring down on his hands that are on the steering wheel. After the instant angle change, however, the light is now turned off. It cannot be argued that the light turned off automatically during that split second angle change because when the doors of a car are already closed, and the car is started -- the light turns off instantly (if not already off) So this being the case, the light was manually turned in the first shot, and then it was off in the next. (00:06:35)
Continuity mistake: At the very end of the movie when the group is cornered by the Raptors, Tea Leoni gives them the eggs. When the first raptor picks up the first egg it is safe in its mouth, but in the next shot it is barely in its mouth, then in the final shot when the Raptor runs away, if you look closely at the Raptor's mouth the egg is well into the mouth.
Continuity mistake: In the diner, when Mr. Kirby is bribing Dr. Grant, after he says "We'd love to make a contribution to your research here" Dr. Grant lowers his glass to the table. In the following shot he does it again. (00:15:10)
Continuity mistake: The plane the group flies in is identified on the outside as a King Air 200. In the inside shots, the windows are from another type aircraft as the window shades are pull down types and in the King Air the windows are tinted by rotating a plexiglass cover to dim the light. Also, the engine sounds are from a piston aeroplane and this plane is definitely a turbo prop.