Factual error: The drug-runners at the start of the film mention that their scheme is to smuggle cocaine by mixing it with molten plastic, molding the plastic into dolls, shipping them and then re-melting the plastic to separate the cocaine again, which will leave it "100% pure." While you can indeed smuggle cocaine by mixing it with plastic, the process to recover it is way more intricate than simply re-melting the plastic, and requires chemists to treat the plastic with all sorts of chemicals and compounds in a complex process (and it will not be "100% pure" as suggested), and it is usually done with larger plastic objects (like plastic dog-houses or car-parts), as something the size of a doll isn't going to be able to hold all that much cocaine.
Factual error: A carton of HEB milk is taken out of the fridge and it has the new (as of 1994) label on it. The movie is set in the late 80s, when the old style label was still used.
Factual error: Roger's dad says when the "Angels win the pennant." During the last final scene/regular season game, after the win, Ranch Wilder announces that "the Angels won the pennant." They would have to have won the American League Championship Series in order to win the pennant.
Factual error: "A Friend's" emails sent from the Univ. Of Washington look ridiculous with just some text and an abbreviated name on a colored background. UW emails have a white background, the addresses have a "uw.edu" domain name and show staff name, credentials, title, and department. The UW name, logo, and other info are always included. Prof. Friend's student assistant (son of Tom's co-worker) sent the emails from Friend's office, but he could have sent anonymous ones from any computer using Yahoo, Google, etc.