THE LOST WORLD: JURASSIC PARK (1997)
Four years after the failure of Jurassic Park on Isla Nublar, John Hammond reveals to Ian Malcolm that there was another island ("Site B") on which dinosaurs were bred before being transported to Isla Nublar. Left alone since the disaster, the dinosaurs have flourished, and Hammond is anxious that the world see them in their "natural" environment before they are exploited.
But when a T-Rex is transported from "Site B" to San Diego...well, you can imagine. I also imagine 1998's Godzilla borrowed a lot from this film.
I remember falling in love with the first movie (like most of the world), but I also remember when I first saw The Lost World, I wasn't much of a fan. But, a lot has changed between now and 1997. I have an appreciation for it, especially after finally reading the novel.