Character mistake: Sarah is a trained expert with predatory animals. But when her jacket is covered with blood (and not just any blood, the blood of the infant T-rex), and they're in a forest surrounded with carnivorous dinosaurs, and she knows that they need to pass through Velociraptor territory, and she thinks that the T-rex might follow them, she doesn't think to take the jacket off. And the others, who also happen to be hunters who would surely know that the blood would attract predators, don't say anything about it.
The Lost World: Jurassic Park (1997)
Ending / spoiler
Directed by: Steven Spielberg
Starring: Julianne Moore, Jeff Goldblum, Vince Vaughn, Richard Attenborough, Peter Stormare, Pete Postlethwaite, Arliss Howard
Malcolm, Sarah, Kelly and Nick get off the island and Ingen capture the T-rex and the kid. Roland declares that he has 'spent enough time in the company of death' and leaves. Back in the city the Rex breaks loose to look for its baby. Malcolm and Sarah find the kid and lure the T-rex away from people with it. They leave it in the ships hold and then escape. Hammonds nephew Peter Ludlow (I think that's his name) comes in to find the kid and does. The Rex comes along and lets the baby take care of Ludlow. Its all grown up! As the doors of the hold close Sarah shoots the Rex with a sleeping dart. It is transported back to Jurassic park and the movie ends with Malcolm, Sarah and Kelly on the sofa in front of the tv. The TV is showing an interview with John Hammond. Hammond ends the movie by quoting Malcolm's words from the first movie, saying that 'Life will find a way'.
George Davis
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Suggested correction: While you are right, it's still not that much of a mistake because not only does it tie into the Butterfly Effect from the first movie, but also maybe Roland used it to his advantage, meaning an opportunity to shoot the Buck Rex since using its baby didn't work.
You're really grasping at straws on this one. The top priority for everyone at this point is to find safe shelter. A bunch of dinosaur experts aren't going to jeopardize that by allowing someone in their group to walk through dangerous territory with blood-soaked clothing, and Roland isn't going to risk the lives of other people to hunt the T-rex. This is just bad writing by the filmmakers, plain and simple.
What butterfly effect?
He's talking about when Ian Malcolm was explaining chaos theory and used the term "butterfly effect." But like Phaneron said, the person was really grasping as straws and this scene has nothing to do with what Malcom was talking about.
Suggested correction: I don't think this is actually a mistake. Yes Sarah's jacket is covered in blood from the baby T-Rex, but as you say they've got to pass through Velociraptor territory. In JP3 it was noted that the T-Rex pee keeps smaller dinosaurs away but actually attracts the Spinosaurus. The scent of the T-Rex blood could actually also have the same effect as the pee at keeping the smaller dinosaurs away.
Ian Malcolm: Mommy's very angry.
Trivia: Hammond doesn't appear in the second book (though he does in the second movie). This is because, in the book series, Hammond was killed in the first book. He slipped, broke his ankle and was fatally attacked by compies.
Question: What happened to the dinosaurs on Isla Nublar? They wander around Isla Sorna on this movie, but no mention is made of the dinosaurs in the original. Does anybody know about their fate? Were they killed? Did they die naturally?
Answer: The dinosaurs on Isla Nublar are not mentioned. In the first book they are destroyed by bombing, which makes the second island more surprising - a lost world.