Glad to see I wasn't the only one who noticed the Warren Zevon link in JP2. I noticed that when I saw it in the theater all those years ago.
Did you see JP3? If not, here's the plot synopsis:
People get onto the Island;
People get stuck on the island;
Mayhem follows: Dinos chase people around the island, killing a few, eating a few.
People rescued off the island.
End of movie, end of franchise.