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. A more appropriate term would have been Ray Guns.
The young army cadet Keith is seen practicing his rifle drill, using the "Slope Arms" position. Slope Arms was replaced by "Shoulder Arms" in the mid'60s with the introduction of the SLR rifle and was no longer used by Australian Army Cadets in 1969, despite them still using .303 rifles
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.)
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.
The dish that was filmed in the movie is the up to date version of the radio telescope, with a larger diameter white portion in the center of the dish. The dish in the original old black and white photos behind Mayor Bob and the Prime Minister in the hallway had a much smaller white center portion to the dish antenna.
Archive footage of the ascent stage of the lunar module lifting off from the moon is not from the Apollo 11 mission. The first images of such a lift-off (showing an exterior view of the lunar module) were made using the camera mounted on the wheeled lunar roving vehicles, only carried on later Apollo missions 15, 16 and 17.
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.
During the Apollo 11 launch the sound is incorrectly synchronized to the pictures. In actuality engine ignition started T minus 6 seconds so that the engines would be at full power at zero. Here the ignition is incorrectly shown as occurring at T 0.