Revealing mistake: During the first shot of the rocket ship coasting through space stars can be seen through it.
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.
Question: Anyone notice the monolith at the far left of the matte painting showing the first view of Zyra after the ship landed? The details on it are WAY too symmetric to be natural (The Authors of When Worlds Collide printed a sequel called "After Worlds Collide", but this novel was never made into a movie), In the sequel, the survivors find the remains of a lost civilization.Regulus