Best sci-fi movie trivia of 1951
Trivia: In order to make Gort's body appear seamless, two different costumes were created, one that opened in the back for front shots and one that opened in the front for rear shots. Unfortunately, as someone has already pointed out on this site, it was sometimes rather difficult to co-ordinate which suit was needed for which shot and thus there are several times in the film where Gort's seams can be seen.
Trivia: In the book "When Worlds Collide" the lottery to determine who gets to fly to the new world gets cancelled when the first passing of the planets cause an eruption which causes an upwelling of a new metallic mineral with some peculiar qualities. A second spaceship, considerably larger than the first ship is built, enabling all who worked on the project to be saved.