Jurassic Park (1993) and related work:
Jurassic Park (1993) IMDb
The first film I can remember finding truly scary, though instead of admitting this, I made constant, presumably bad jokes throughout its screening. I think I was 11.
References here: “Gertie the Dinosaur” (1914), “Industrial Light & Magic: Creating the Impossible” (2010), The Meg (2018).
If the twist on the rich adventurers had not self-destructed in the recombination of the family, it might have been adequate.