When Magnum leaves TC's office after breaking in, he reaches through the broken window and re-locks the door. The police who confront them in the hall immediately after they leave, simply push on the door to enter the clearly now unlocked office.
When TC's helicopter does the pickup at the prison yard it has the registration number N1095A and has bare skids, but in flight over the ocean it is N58243 and has rubber wrapped skids.
The helicopter that TC flies is a Hughes 500. The Hughes 500 is powered by an Allison 250-C30, 650 hp turbine engine. When the helicopter is running out of fuel, you hear the engine cut out and come back sputtering a number of times. Turbine (jet) engines do not behave this way when running out of fuel. Turbine engines spool down and try to spin back up, but they don't sputter like a reciprocating engine does.
When the helicopter is shown down amongst the trees after crashing. it does not exhibit any of the post-crash damage signatures that you would see in this type of accident. The rotor blades show no damage and are simply leaning up against the fuselage. The helicopter is sitting completely upright, supposedly having hit hard enough to pop out the two forward windshields. However, the struts and airframe show absolutely no damage, and the surrounding trees do not exhibit any damage to them either.
When T.C.'s helicopter is shot in the prison yard, you can see the painted charges. They are brown and explode to simulate the chopper getting hit.
During the meeting in the Sauna between Rick and Ice Pick, Ice Pick stands up and pours water on the hot rocks. There is a several second delay before any steam begins to rise from the rocks, something which would happen immediately. In addition, steam comes shooting in from the right-hand side of the frame, nowhere near where any steam would be generated.
When TC kicks at the man climbing up the hill, the man flies backwards as if he had been kicked very hard. However, TC's foot obviously misses hitting him by four to six inches.