Astronomer Seth Shostak served as scientific consultant on the film, reviewed the script several times for errors, gave suggestions for making the scientists appear less dry, and noted that they would refer to one another on a first-name basis.
Astronom Seth Shostak je bio angažiran kao savjetnik na filmu, pregledao je scenarij nekoliko puta zbog grešaka, davao prijedloge da znanstvenici izgledaju manje suhoparno, te je napomenuo da bi se obraćali jedan drugome prvim imenom.