In the excerpt from Carry on Henry VIII (1971), Bernard Bresslaw appears as Cardinal Wolsey, a part played in the film by Terry Scott.
The film depicts Barbara Windsor walking out of a cast script read-through of Carry on Emmannuelle (1978) at Pinewood studios, in disgust at the poor quality. In reality, she turned the film down and had no further involvement with the production.
Sidney James is shown having a near-fatal heart attack in 1969. When Barbara Windsor visits him disguised as a nurse he shows her a newspaper saying Tony Hancock has committed suicide. Sid James suffered this heart attack in 1967 and Hancock died in 1968.
According to Kenneth Williams' published diaries, he was not traveling in a car with Barbara Windsor when he found out about Sidney James' death - rather, he had returned to his flat after dining out with his mother when the news was broken to him via a phone call.
Kenneth Williams is shown to write in his diary, and is clearly holding his pen in his right hand. Williams was left-handed, as he notes himself in his autobiography.
Kenneth Williams, while reviewing Carry on Spying (1964) in an early scene, suggests that he hasn't been in a state of sexual arousal since "Jim Dale went down the stairs on that hospital trolley". This scene is supposedly contemporaneous with the filming of Carry on Cleo (1964), but the scene Williams mentions of Jim Dale going down stairs was in Carry on Again Doctor (1969), filmed in 1969.
During the latter part of the film, which is set in 1976, Sid's wardrobe assistant says she has been asked to take part in the making of the James Bond film You Only Live Twice (1967), which was made in 1967.
Many of the vehicles (trucks, etc) shown in scenes set in the 1960s are from the 1980s
In the Pinewood Studios canteen, we see the cast of Goldfinger (1964) having lunch. Later that same day, an actress claims she is going to the premiere of Doctor Zhivago (1965). Goldfinger was released more than a year before Doctor Zhivago.
Kenneth Williams says he watched himself on International Cabaret (1964) the week before Sid James died. James died in April 1976, but Williams last hosted International Cabaret in December 1974 after which the series went into hiatus and was not broadcast again until January 1978.