The central conceit is so flimsy that it's only possible to take it seriously at all by treating it as a metaphor. Which, fortunately, can be done pretty easily,
[Michael Crichton] makes a creditable debut as a film director.
Blog de cine
October 03, 2016
An interesting sci-fi movie that does a great job with the approach proposed by Crichton and has Yul Brynner as a memorable villain. [Full review in Spanish]