In one scene, some of the DJs are clinging to the rail on the deck of the sinking ship to keep from sliding down the deck. In a later scene, three of the DJs are standing upright in the studio and not leaning like they would be if the ship were sinking at a 45 degree angle. Also, the water in the studio is level as if the ship were sinking levelly.
When young Carl goes to the broadcast studio to ask Bob about being his Dad, the clock on the wall reads 3:20 (AM) when he arrives. A conversation ensues during which Bob finishes one song, then introduces and starts another as he talks with Carl. But when the scene ends after several minutes, the clock still reads 3:20.
When The Count threatens to say the f-word live on air, in some shots his hand is holding the microphone, in others his hand is by his side.
In the Christmas scene at the government minister's house, the minister's daughter offers Twatt a mince pie. A mince pie can be clearly seen already on his plate and when he accepts the (apparently second) the other has vanished.
When they start the final record by Procol Harum, we watch a single at 33rpm. That is possible as it was a very long track. Nevertheless when we have a second view of the turntable a few shots layer, it obviously plays at 45rpm.
Simon's wedding to Elenore was not legitimate. Contrary to belief a ship's Captain cannot marry anyone unless he is a minister, a magistrate or a judge. Even if a Captain could perform marriages at sea, the wedding still wouldn't be legal as Quentin was the one officiating at it, he was not the Captain of the vessel.
When the crew are huddled at the stern of the ship near the end, it is pitch black. Within minutes the fans' boats arrive to rescue them, and the sun is now over thirty degrees above the horizon (about 9 a.m. at that latitude) with enough light to read the welcoming signs which were illogically created to impress the crew. The sun cannot rise that fast.
The ship is sinking at about 45 degrees, yet the DJ is able to play a record on a level turntable.
The ship is supposed to be anchored off the Suffolk coast, but all exterior shots clearly show that the ship does not have her anchors dropped.
When the ship is sinking and Gavin starts to play the Procol Harum record, the stylus of the arm is already at the end of the track.
The characters frequently use vernacular that was not made popular until much later than 1966. Characters refer to protection as 'condoms,' which were much more commonly called 'Johnnies' in the 60s. Also, Young Carl is told that when dealing with Thick Kevin, it was important to "think outside the box," a term not coined in general use until the early 90s.
When Rhys Darby's character Angus is first introduced, He has a modern pair of "Panasonic" headphones on. At the time, Matsushita Electric Industrial Co. commercialized its products throughout Europe under the "National" branding. The "Panasonic" branding, introduced in Japan as a brand for audio speakers and introduced as Matsushita's main branding for its consumer electronics in the United States six years later, was not used in Europe until 1980.
The song "Nights in White Satin" by The Moody Blues is played on the station. That song debuted in November 1967 and hit popularity in 1972. The movie takes place in 1966.
Early in the film, some of the characters are playing a trivia game and two of them "high-five" each other. The "high-five" didn't begin until the late 1970s and wasn't popularized until the early 1980s-by athletes. In 1966, athletes would simply shake hands.
This movie's story takes place in 1966, but many of the records heard on the soundtrack were not released - and thus did not receive radio airplay - until well after that year, including: Judy In Disguise (1967/68), To Sir With Love (1967), Jumpin' Jack Flash (1968), Fire (1968), The Happening (1967), The Letter (1967), Groovin' (1967), She'd Rather Be With Me (1967), Elenore (1968), Crimson & Clover (1968/69), This Guy's In Love With You (1968), The Wind Cries Mary (1967), I Can See For Miles (1967), A Whiter Shade Of Pale (1967), Won't Get Fooled Again (1971!)
and Nights In White Satin (first played as an album cut from "Days Of Future Passed" in 1967, later released as a single in 1972).
When the camera shows the VU meters on the mixing control panel, the meter movement doesn't match the voice peaks as they should in an actual radio broadcast.
In one sequence where a tender vessel is approaching the Radio Rock boat, the wake from the camera boat is visible to the left of the bow wash from the tender.
When there is an aerial shot, the helicopter is visible in the sea.
During the Christmas dinner scene when Dave gives a toast to Carl, the camera cuts away to show Quentin and the focus puller and cameraman are visible on the right hand of the screen.
When Rhys Darby's character has been thrown off the boat to 'swim', there is the shadow of a camera on the backs of the crew members who threw him off.
The Boat is sinking at a position given as 53 degrees 17 minutes North and 2 degrees 15 minutes East - which is a position 70 km Northeast of Bacton in Norfolk, (the nearest town on land) - however Gavin is requesting anybody with a boat in Suffolk to help with the rescue. Suffolk is a long way to the South and he would do better to ask for help from anyone in Norfolk.
Simon jumps from the ship in fear of his life but then swims past a life belt.
After the Count was supposed to be saying "the F Word" he apologizes for its being said five times, when in fact it would have been broadcast six times.