Prior to the beginning of the trial, Jackie DiNorscio's hair was kind of sandy in color but, in the courtroom, it became much darker.
In the end titles "DiNorscio" is misspelled as "DiNorcio".
The brocard written on the judge's bench has an orthographic mistake: the cited Latin sentence is Fiat justitia ruat caelum ("Let justice be done though the heavens fall") and not "iustica" as in the movie.
While the movie is set in the late 1980s, many of the cars seen in some of the outdoor scenes were not produced until the late 1990s or early 2000s. For example, in one outdoor scene before the verdict is read, a 2004/2005 Mercedes 350SC or 500SC is clearly seen.
During the poker scene on the boat, which takes place in 1987, the 2004 short film Gopher Broke (2004) is playing on television.
(at around 1h 5 mins) During the poker game at the boat on Day 451 of the trial, you can see a widescreen TV on the wall inside the cabin.
At around 1hr14mins you can see a flat screen PC monitor with modern operating system being used.
The Latin motto on the judge's desk "FIAT JUSTICA ET RUAT CAELUM" is wrong. It should be "FIAT JUSTITIA RUAT CAELUM". "JUSTITIA" is spelled wrongly and the "ET" makes nonsense of the motto: "Let Justice Be Done [and] the Sky May Fall"
(at around 15 mins) Ben says that the "C" in RICO stands for "conspiracy." In actuality, RICO stands for Racketeer Influenced and Corrupt Organizations Act.