Factual errors: Although shown as such out the window of the antenna control room, the Moon was never full during the Apollo 11 mission.
Continuity: In the scene were Billy is explaining the moon landing to his father, he anticipates Marie's line, "If you ask me it's the most chauvinistic exercise in the history of the world." (He turns to look at her before she starts speaking even though she is interrupting the conversation.)
Errors made by characters (possibly deliberate errors by the filmmakers): On the blackboard showing calculations for finding where Apollo 11 is the word parallax is spelled "parrallax".
Continuity: St. John's Anglican Church in Parkes (actually Forbes) was the primary location for "church" shots. Following services the Sunday before the moon landing the parishioners are seen exiting St Andrew's Presbyterian Church instead of St. John's. Both churches are on the town square. St. John's could not be used on the "shooting" day since the church was being used for a funeral.
Crew or equipment visible: When Janine exits the car after she arrived at the dish facility, the shadow of some equipment falls on the hood and roof of the car.
Errors made by characters (possibly deliberate errors by the filmmakers): Near end of film when high winds hit Parkes, a welcome banner stretching across the main street says "Welcome Prime MinAster", e.g., "Minister" is misspelled as "Minaster" on the banner.
Factual errors: 40 minutes into the film, Mayor Bob McIntyre puts a record on and dances with his wife to Blood Sweat & Tears 'You Made Me So Very Happy'. But BS&T recorded exclusively for CBS/Columbia at the time and the record on the turntable is clearly a red label Decca pressing.
Anachronisms: When the antenna was moved for the first track, during the segment where the machinery was shown starting, two labels "STOWED" and "FREE" were shown. These are modern (Brother brand) P-Touch labels.
Anachronisms: During the classroom scene at the beginning of the movie the first student describes the moon landing and a battle with aliens which involves Lasers. Whilst Lasers had been invented, their commercialisation and popular use was not yet prevalent. Possibly a more appropriate term would have been Ray Guns.