The fight scene in the prison cafeteria between John Lithgow and Jesse Ventura recreates the final duel from Russell Mulcahy's earlier film Highlander (1986). There are multiple visual references, including the use of swords, the foley effects, the back-lit windows, and the camera angles, including the famous tracking shot of the camera rolling along the floor.
According to many reports from people who were members of audience during first test screening of the movie, it was originally much more violent, and it's also been reported that the final version is heavily cut. Also, according to a foreign interview director Russell Mulcahy gave, a scene where Styles is physically abused by Blake until he pukes out and Blake then gets sponge to clean him up was one of the scenes that were cut out after test audience reacted very negatively to watching a white man torture a black man. Some trailers do show shots of scenes which are not in the movie.
When John Lithgow enters the Prison Cell with Jesse Ventura (WWF) the picture on the wall is of Vincent McMahon President of the WWF who Ventura worked side by side with for years as a ringside commentator.
The video camera that "The Camera Bug" is using at the fair appears to be a two-piece Canon VC-10 series color camcorder, which was appropriate to the setting of the scene in which it appears (1983). The camera transmitted the video signal to a VCR, which you can see in a bag slung over The Camera Bug's shoulder.
When Odessa calls Blake, to set him up he says "You wanna find out who really got the power. Bring your punk ass to the tower!". In 1991, the year this movie was released, Ice-T released his album "O.G.(Original Gangster)" and on it was a track called "The Tower" which shares a similar line of "I ask myself just who had the power: The Whites,The Blacks, Or just the gun tower."
The date on the camcorder time index (when Styles arrested Blake) reveals the year to be 1983. Which means by the end of the film (1991) - the incarceration, escape, and Styles' children growing older; 7 and a half years roughly passed.