I can't say much about Michael Chricton, (Though I'm sure being such a heavily promoted author, there is a good chance he is also seeding these gnostic themes into the public mind)..

But Spielberg is definitely exploiting the narratives to promote his Gnostic agenda. If you think this might all be coincidence, just have a read through this article, and some of the others on this website. There are certain elements which are blatantly pushing gnostic/luciferian themes.

[link to nwointelreport.blogspot.com]