Factual error: At the beginning of the film we are shown an amber mine in the Dominican Republic. This amber is only 45 million years old, Hammond would never bother buying the amber from there as dinosaurs disappeared from the fossil record 65 million years ago.
Suggested correction: This is assuming that Hammond would restrict himself to a specific period of the earth's history, which makes no sense. Of course Hammond would also be interested in Paleogene or early Tertiary fossil blood! All the proto-birds, giant birds (just think about a Gastornis! What a sensation in a zoo!), not to mention giant mammals like the Megatherion, proto-elephants, proto-rhinoceroses.
There is absolutely no suggestion in Jurassic Park - film or book - that Hammond has any interest in any animals except for dinosaurs. We see no facilities for cloning extinct birds or mammals, nor are they mentioned in his promotional film. The post is correct.
It's specifically mentioned in the book that Hammond was buying huge quantities of amber, even museum-quality jewelry. He was likely getting hold of everything he possibly could to increase chances of finding blood-carrying insects.
There is also absolutely no suggestion that he wouldn't be interested. Surely these would make excellent alternatives / backups in the event he couldn't source enough mosquitos of the era he was most interested in.
As has been pointed out on this site before, inventing deux ex machina explanations for plot holes and factual errors does not invalidate them. Cloning non-egg laying mammals would require vastly different technology to that seen in Jurassic Park. Nowhere in the film is it indicated that Hammond is interested in anything except dinosaurs, nor that he is in any way equipped to clone anything but them.
Hammond buying up any mosquito-containing amber is not a plot hole. He didn't say he wanted exhibits from 45 million years ago, but he also didn't specifically say he wasn't interested. Lack of a statement in a film is not a plot hole.
Continuity mistake: When the five characters start to leave the helicopter upon arrival on the island, Richard Attenborough is not sitting opposite Jeff Goldblum as he was moments earlier as the helicopter descended to the pad.
Suggested correction: Perhaps he just wanted to exit the helicopter first, so he switched places when the helicopter had touched down. You can see they had already undone their seatbelts, so they had time to move around before the door opened.
Character mistake: When Genarro is explaining to Hammond that he is at the park to report Hammond's progress to the investors, he says "In 48 hours if they're not impressed, I'm not impressed. We'll shut you down, John." He should have said "If I'm not impressed, they're not impressed" since the investors would be shutting down the park on his advice, not the other way around.
Suggested correction: He'll be the one to shut it down, not the investors. They gave him the ability to do that. So once he hears they are not impressed, he'll be shutting it down.
That still makes the statement backwards, since he is representing the investors interests, not his own. The way he words it suggests even if they weren't impressed but he was, he could keep the park open of his own accord. The buck stops with the investors.
There's actually already a submission just like this one in the Corrections section, with the correction - provided by JC Fernandez - noting that Genarro is referring to the scientists that have to be convinced that the park is ready to open, and that if the scientists aren't convinced, then Genarro will not be convinced either, and he will notify the investors of it.
Didn't see that correction before. When reviewing the scene in question Genarro does ever so slightly gesture behind himself when he says "they", which I had not noticed before.
Continuity mistake: When Nedry hears the Dilophosaurus and turns around, he's holding a tow cable. It's gone in the next shot.
Suggested correction: Between shots you can see how he releases the winch cable before turning.
