Jurassic Park Inconsitencies - Notice Them?

[DrinkMore]

I was watching JP last night on HD and noticed a big flaw in the T-Rex scene. I have notices this before, even when the film first came out - however really didn't bother me. It kinda does now, but it will never ruin the movie for me

Anyone ever notice that when the Jeeps first pull up to the T-Rex area, it's all lush and there is dirt and ground right there behind the fence? This can be confirmed by the fact that they bring up a goat from under ground as well to tempt the Rex.

However, after they make the second go around when the power goes out and they are stuck in front of the T-Rex area again and the Rex is show behind the fence, eating the goat, you can see how big he is. It still looks like he is level with the flat area outside the fence. Then, once he breaks free and does his dirty deed, the guy and girl get pushed against the wall and they then have to go down the power line and swing against the wall.

Here you see this HUGE wall that has to be at least 3 or 4 stories tall, maybe more. Where the hell did that come from? I know if the Rex was standing on the ground in this shot, he would not have been seen from up above unless you leaned over and looked down.

Anyone else find that whole scene crappy? It won't ruin the film for me - I just found it to be really bad that nobody on the film would have questioned or thought about that.