Although there is no disputing the impact that Steven Spielberg's Jurassic Park had when it was released in 1992, there has always been one scene that has bugged/perplexed me.

I speak of the climax, when Alan Grant et al are surrounded by the Velociraptors and about to be pounced upon, when suddenly the T-Rex lunges in and 'saves the day'.

It has already been established earlier on the film that the T-Rex telegraphs its approach with thunderous footsteps, and I'm pretty sure that even if the humans were surrounded by malevolent reptiles, they would notice a huge T-rex squeezing in through the front door of the reception center.

Possible explanations include the T-Rex's ambushing skills (as evident in the earlier Gallimimus chasing scene), the afore-mentioned distraction of the Velociraptors, or even a huge suspension of disbelief to better serve the dynamism of the scene.

I don't like the idea of T-Rex just being shoehorned into the scene to add some va va voom, so is there a better explanation?


3 Answers 3


Well I never wondered about this. There has been quite a chaos (with them falling through the ceiling into these skeletons) immediately before it, under which an approaching T-Rex could really get lost.

So I would indeed attribute this to the distraction created by the velociraptors and the overall chaos of this scene (both for the audience and the characters). And maybe a bit of trying to create a very surprising moment by sacrificing a small bit of realism (which never bothered me at all).

  • 1
    T Rex couldve taken an alternate route into the building. :)
    – Dredd
    Commented Feb 10, 2012 at 2:05
  • Or he just had crawled in for a nap... and the whole ruckus the raptors made woke him up? Sure would make ME grumpy ;).
    – Layna
    Commented Sep 25, 2014 at 7:14
  • The T-Rex was being vewwy, vewwy careful. It didn't want it's prey to escape.
    – Juan Perez
    Commented Apr 7, 2023 at 20:55

The simplest answer is that the T-Rex didn't come in through the main doors, it came through the (now open to the elements) side entrance, shouldering its way through the scaffolding:

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  • 1
    Needs freehand circles.
    – Wad Cheber
    Commented Nov 16, 2015 at 1:21
  • 1
    @CapyStenchbeast - I'm sad that I forgot the gigantic red arrow on the bottom picture...
    – user7812
    Commented Nov 16, 2015 at 9:39

In the movie, when the camera pans to the t-rex, if you look in the background there's a large door or opening in the background that it looks like the t-rex came through.

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