Several of the police cars in the movie are shown with new LED lightbars. LED lightbars on emergency vehicles did not enter mainstream use until the mid-2000's, and certainly not in the 1990's or before.
In a scene that takes place prior to 1994, the camera pans to show a patient's personal artifacts and photos on the wall. Among these there is a postcard with the ocean liner Queen Mary 2, but in reality this ship did not exist until 2004.
At various times the Renaissance Center in downtown Detroit can be seen, and on top of the tallest tower is the General Motors logo. The GM logo was not there until the 2004 renovation, after GM purchased it.
About 5 minutes into the movie, Dr. Kevorkian is browsing through books in a library and the camera shows the book "How We Die" by Dr. Sherwin Nuland. This should have been around 1989-90 in Kevorkian's career. But, Dr. Nuland's book was first published in 1994.
Kervorkian was tried in 1993 in Detroit Recorders Court, which was at the time housed in the Frank Murphy Hall of Justice, a brutalist modern building constructed in 1968. When he exits the courthouse in the movie, Kervorkian walks out of the 19th century Roman Baroque old Wayne County building.
In the Channel 7 news report after the first patient passes away, the reporter refers to Lake Orion, and pronounces it like the constellation Orion (oh-rye-on). The correct pronunciation of the town is OR-ee-un.