The Lost World: Jurassic Park

Is this a sequel, or a remake?

I guess it's both. Early on, John Hammond (Richard Attenborough) tells Ian Malcolm (Jeff Goldblum) that there's actually a second island on which several more completely safe dinosaurs have survived, so the latter sets out to 'rescue' his girlfriend, accidentally taking his child along too.

And, whaddayaknow, the dinosaurs turn nasty and chase everyone for the rest of the movie.

I'm not knocking the above at all, I'd have complained if they'd remained friendly.

This is exactly what it says on the box – more of the same, again. Cool.

(original movie here)
(Jurassic Park III here)