It scared the crap out of me when I was 11. You keep getting this horrible mental picture of what these things can do to people with those claws. Most movies can't even brush that level of attention. I remember yelling "TURN THE FLASHLIGHT OFF!" in the theatre - and then the T-Rex came through the glass and everyone was screaming!

That thing was big and all it wanted to do was eat. EAT. Dweh!! *shudders*

Well played, Mr. Spielberg. Well played.