Other mistake: Rusty's attorney challenges Dr Kumagai by pointing out that Caroline Polhemus' had had a tubal ligation, but the spermicide nonoxynol-9 was found in her body. Kumagai is caught off balance, totally flustered. In fact as an experienced medical examiner Kumagai would know that at that time nonoxynol-9 was thought to offer protection from HIV and was widely used by people at no risk of an unwanted pregnancy. He would have thrown this right back in the attorney's face.
Other mistake: When Harrison Ford returns to the crime scene to search for "evidence" we see blood stains on the carpet, which has been on the carpet for days. The blood is bright red and shows no signs of coagulation, but blood turns dark red when it coagulates after only a few hours.
Other mistake: About halfway through, Rusty, his wife and another lawyer are in Raul Julia's office when Raul decides to light a large cigar and while doing so talk all the way through it, which is impossible - you can not talk and light a large cigar at the same time.
