Visible crew/equipment: Watch carefully the scene where the raptors enter the kitchen (that angle where you can see almost the whole kitchen while raptors are coming in from the far away door). As the first raptor enters the kitchen, you can see someone grabbing its tail to hold the puppet-thing steady.
Trivia: When the grandchildren and Grant are crawling above the drop-down ceiling to flee from the raptors, the raptors at one point have "squares" of light shining on them. If you look closely at this light, these "squares" of light are not really squares, but the letters A T C G, the DNA sequence abbreviations.
Question: Are the people present at the digging site when they're discussing new approaches to analyzing skeletons supposed to be paleontologists in dr. Grant's group? If so, why would they laugh at his musings of "how dinos learned how to fly"? And why would he have to explain it to them? Seemed to me like he is explaining very basic stuff to the people that would already know this (and of course, to the movie audience).