Factual error: C4 needs a detonator or blasting cap to explode, and so wouldn't go off from being shot in the trunk of Joe's car. You can even set it on fire and it will just burn slowly. (00:44:35)
Factual error: When the black car lands upside down in the pool, you can see that it lands as if it were dropped straight down. The car should have hit the pool at an angle, for it was speeding off a hilltop at a very high rate of speed when it entered the pool. (01:18:35)
Factual error: In the final scene Dix is carrying a beer in the hand he just got shot in. After being shot in the palm of the hand there would be too much bone/ muscle trauma to be able to grip anything for quite a while, if ever. (01:34:15)
Factual error: The football game at the end of the movie supposedly takes place at the Los Angeles Memorial Coliseum. However, the overhead shots after Milo is killed show that the endzone says "SAN DIEGO". The end zone paint is red, white, and blue. This footage was obviously shot in San Diego, most likely during the Holiday Bowl college football game, which is held in San Diego in mid-December. (01:36:30)
Factual error: Senator Calvin Baynard orders police officers to arrest Joe Hallenbeck for crank calling him. In California, a person can only be arrested for a misdemeanor if caught in the act by law enforcement. At the time, harassment (unless it was a threat) by telephone was only a misdemeanor. In 1996 it became a felony due to the passing of the Telecommunications Act Of 1996 signed into law by then-president Bill Clinton. (01:36:59)
Answer: You're right, I reviewed the clip. You see Joe holding the briefcase and Jimmy run out of the rich man's house, then get directly into his car. At no time do you see him putting the briefcase anywhere. It's most likely a bad editing job.